{"title":"Filter Media","description":"\u003cp\u003eThe consumable side of filtration. Biological media such as ceramic noodles, sintered glass and MarinePure blocks gives beneficial bacteria a home so ammonia and nitrite stay at zero. Mechanical media, meaning filter wool, sponges and socks, traps particles before they dissolve. Chemical media, including activated carbon, phosphate removing resin and nitrate reducing pads, targets what the other two cannot catch.\u003c\/p\u003e\n\u003cp\u003eMedia from Bioscape, Seachem, Fluval, Red Sea, Aqua Medic and API is stocked in bulk and cartridge form. Carbon and resins are consumables and need replacing on a schedule rather than rinsing and reusing, while biological media is left alone once it is colonised.\u003c\/p\u003e\n\u003cp\u003eShipped Australia wide from our North Lakes store in Brisbane.\u003c\/p\u003e","products":[{"product_id":"seachem-matrix-100l-drum","title":"Seachem Matrix 100L Drum","description":"\u003cp\u003e\u003cstrong\u003eSeachem Matrix biological filter media in a 100 litre drum.\u003c\/strong\u003e Matrix is a porous inorganic solid, about 10 mm per piece, that gives beneficial bacteria (the bacteria that break down fish waste) a large surface to live on, inside the pores as well as outside. At Seachem's dose of 250 mL for every 200 litres of water, 100 litres of Matrix works out to about 80,000 litres of aquarium water, so this drum suits large systems, fish rooms and multi tank setups.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge surface area:\u003c\/strong\u003e Seachem rates it at more than about 700 square metres per litre, and states one litre gives as much surface as 170 litres of plastic bio balls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmmonia, nitrite and nitrate removal\u003c\/strong\u003e in the same filter: the pores support both nitrifying bacteria (which convert ammonia and nitrite) and denitrifying bacteria (which remove nitrate in low oxygen areas deep in the pores).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInert:\u003c\/strong\u003e it will not break down, will not directly change your pH, and does not need replacing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinseable:\u003c\/strong\u003e most of the bacteria live inside the pieces, so rinsing off debris does not strip the colony.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo media bag\u003c\/strong\u003e should be needed for most uses, as the pieces are large enough on their own.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Seachem\u003c\/li\u003e\n\u003cli\u003eType: biological filter media\u003c\/li\u003e\n\u003cli\u003eVolume: 100 litres\u003c\/li\u003e\n\u003cli\u003ePiece size: about 10 mm\u003c\/li\u003e\n\u003cli\u003eSurface area: more than about 700 square metres per litre\u003c\/li\u003e\n\u003cli\u003eDose: 250 mL for every 200 litres of water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for freshwater and marine systems with any wet or wet\/dry filter; Seachem recommends a canister filter for best effect. Smaller tanks are better served by the smaller Seachem Matrix sizes, as this drum treats far more water than a single home aquarium needs.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eSet up the flow through your filter in this order: mechanical media (sponge or floss) first, then chemical media, then Matrix. Use it with Seachem Stability to establish the biofilter faster. Seachem says nitrate improvement generally shows within a couple of weeks, though every system varies; if nitrate holds steady and you want it lower, add more Matrix. Pieces vary naturally in colour and size, from very light to quite dark, and this is normal.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eYour rights under Australian Consumer Law apply. Large item; freight is quoted and emailed to you, as set out in our Shipping Policy.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"Default Title","offer_id":54773862924579,"sku":"725056-112","price":1753.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-matrix-100l-drum-302371.webp?v=1790230839"},{"product_id":"red-sea-reef-spec-carbon","title":"Red Sea Reef Spec Carbon","description":"\u003cp\u003e\u003cstrong\u003eClear, yellow-free reef water without the phosphate trade-off.\u003c\/strong\u003e Red Sea Reef-Spec Carbon is a low-dust, low-phosphate activated carbon that strips dissolved organics and the yellowing compounds that dull reef lighting, without leaching phosphate back into a phosphate-sensitive system. It comes in four pack sizes — 200 mL, 500 mL, 1000 mL and 2000 mL — to suit anything from a nano reef to a large display.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-low phosphate leaching\u003c\/strong\u003e — rated below 0.000001 g of phosphate per mL, so it won't undo your reef's nutrient control while it works.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow dust\u003c\/strong\u003e — minimal rinsing before use and no black clouding on start-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh adsorption capacity\u003c\/strong\u003e — rated at up to 1,000 mg of small organic molecules per gram, which is what actually clears yellow tint and dissolved odours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine 0.6–2.3 mm granules\u003c\/strong\u003e pack densely enough to work in a small reactor without channelling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour pack sizes\u003c\/strong\u003e so you can match the dose to your system without buying more than you'll use before it exhausts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 mL\u003c\/td\u003e\n\u003ctd\u003eRED533\u003c\/td\u003e\n\u003ctd\u003e7290100775950\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003eRED528\u003c\/td\u003e\n\u003ctd\u003e7290100775806\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 mL\u003c\/td\u003e\n\u003ctd\u003eRED529\u003c\/td\u003e\n\u003ctd\u003e7290100775813\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 mL\u003c\/td\u003e\n\u003ctd\u003eRED531\u003c\/td\u003e\n\u003ctd\u003e7290100775820\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eGranule size 0.6–2.3 mm. Adsorption capacity approximately 1,000 mg\/g for small organic molecules and 280 mg\/g for large organic molecules. Phosphate leaching below 0.000001 g per mL. Fresh and marine, reef safe.\u003c\/p\u003e\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\u003cp\u003eRed Sea doses this carbon at approximately 100 mL per 200 L of system water for general clarity and yellow-tint removal, replaced every 6–8 weeks or once it's visibly reduced to about half its original volume. For heavier post-medication clean-up, double that to 200 mL per 200 L, run for about a week. Run it in a media bag or reactor with 1,000–1,500 L\/h of flow per 50 g (roughly 100 mL) of carbon.\u003c\/p\u003e\u003cp\u003eScaled against that dose rate, here's what each pack treats through one carbon cycle, and what that works out to per litre of tank water:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eTreats per cycle\u003c\/th\u003e\n\u003cth\u003eCost per litre treated\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 mL\u003c\/td\u003e\n\u003ctd\u003e~400 L\u003c\/td\u003e\n\u003ctd\u003e3c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003e~1,000 L\u003c\/td\u003e\n\u003ctd\u003e2c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 mL\u003c\/td\u003e\n\u003ctd\u003e~2,000 L\u003c\/td\u003e\n\u003ctd\u003e1c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 mL\u003c\/td\u003e\n\u003ctd\u003e~4,000 L\u003c\/td\u003e\n\u003ctd\u003e1c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe 1000 mL and 2000 mL packs work out cheapest per litre treated — buy a smaller size for a nano tank you don't want sitting on an opened pack for months, and step up once your system is over roughly 1,000 L in total volume.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eRinse briefly before use to settle any fine dust. Run in a media bag or reactor, not loose in a sump. Replace on schedule rather than waiting for it to visibly fail — exhausted carbon stops adsorbing well before it looks used up, and old carbon left in the flow path can start releasing what it's already trapped.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for reef, FOWLR and freshwater systems where you want clearer water and controlled phosphate. Not a substitute for a dedicated phosphate remover if your issue is elevated phosphate rather than dissolved organics and tint — pair it with a phosphate-specific media for that job.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cp\u003ePairs with a Red Sea Reef-Spec media bag to keep granules contained in a sump, or a media reactor where you want guaranteed flow through the bed rather than around it.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eConsumable filter media, sold as new stock — not covered by a mechanical warranty, in addition to your rights under Australian Consumer Law. Ships as standard parcel freight.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I run this loose in my sump instead of a media bag?\u003c\/h4\u003e\u003cp\u003eYou can, but a media bag or reactor keeps the granules from spreading through your system and makes replacement straightforward. Loose carbon is harder to fully remove later.\u003c\/p\u003e\u003ch4\u003eHow do I know when it's exhausted?\u003c\/h4\u003e\u003cp\u003eWatch the calendar rather than the water — carbon usually stops working well before the water looks any different. Replace every 6–8 weeks, or once the pack has visibly reduced to about half its original volume.\u003c\/p\u003e\u003ch4\u003eWill it affect my corals?\u003c\/h4\u003e\u003cp\u003eNo — it's formulated with very low phosphate leaching specifically for reef systems, so used and replaced on schedule it shouldn't push phosphate into your water.\u003c\/p\u003e\u003ch4\u003eDoes it work in freshwater tanks?\u003c\/h4\u003e\u003cp\u003eYes, it's suitable for both freshwater and marine systems.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"200ml","offer_id":54774156755235,"sku":"RED533","price":13.5,"currency_code":"AUD","in_stock":true},{"title":"500ml","offer_id":55335138722083,"sku":"RED528","price":22.5,"currency_code":"AUD","in_stock":true},{"title":"1000ml","offer_id":55335138754851,"sku":"RED529","price":38.0,"currency_code":"AUD","in_stock":true},{"title":"2000ml","offer_id":55335138787619,"sku":"RED531","price":60.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-sea-reef-spec-carbon-43876682957091.webp?v=1790239295"},{"product_id":"red-sea-reef-media-cup","title":"Red Sea Reef Media Cup","description":"\u003cp\u003e\u003cstrong\u003ePuts your filter media directly in the water path instead of sitting loose in a corner of the sump.\u003c\/strong\u003e The Red Sea Reef Media Cup is a drop-in replacement for a filter sock mount, holding a reusable media bag with slots that force water down through whatever you've loaded — carbon, GFO, biopellets or filter floss — rather than letting it bypass around the outside.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForces full contact with your media\u003c\/strong\u003e — slotted at the base so water has to pass through the bag, not around it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits existing filter sock mounting hardware\u003c\/strong\u003e — a cost-effective, reusable swap for disposable filter socks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolds about 1 L of media\u003c\/strong\u003e — enough for a working charge of carbon, GFO, biopellets or a biological rubble media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes one REEF SPEC media bag\u003c\/strong\u003e — sized to the cup, ready to load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWill it fit my tank?\u003c\/h3\u003e\u003cp\u003eWorks with all Red Sea REEFER systems and most Red Sea MAX systems — the exception is the MAX Nano, which this cup doesn't fit. It's also compatible with most pre-made sumps that take a standard filter sock, since it mounts the same way a sock does.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCup dimensions\u003c\/th\u003e\n\u003ctd\u003e10 x 20 cm (4 x 8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum sock-mount opening\u003c\/th\u003e\n\u003ctd\u003e9 cm (3.5 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia capacity\u003c\/th\u003e\n\u003ctd\u003e≈1 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded media bag\u003c\/th\u003e\n\u003ctd\u003e13 x 25 cm (5 x 10 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eAll Red Sea REEFER systems; Red Sea MAX systems except MAX Nano; most pre-made sumps with standard sock mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e carbon, GFO, biopellets, filter floss and other bagged media, on REEFER and MAX (excluding MAX Nano) systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the MAX Nano, or sumps without a compatible sock-style mount.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eLift the cup out, swap or top up the media bag, and drop it back in — no need to disturb the rest of the sump. Replace or recharge media on the schedule the media itself specifies, since the cup only controls flow through it.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Red Sea's manufacturer warranty against defects, in addition to your rights under Australian Consumer Law. Standard shipping across Australia.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eDoes this replace my filter sock or sit alongside it?\u003c\/h4\u003e\u003cp\u003eIt replaces it — the cup mounts in the same spot a filter sock would, so you're not running both at once in that position.\u003c\/p\u003e\u003ch4\u003eWhat media can I put in it?\u003c\/h4\u003e\u003cp\u003eAnything bagged: carbon, GFO, biopellets, filter floss, or a biological rubble media. The slotted base is what forces flow through it, not the media type.\u003c\/p\u003e\u003ch4\u003eWill it fit my MAX Nano?\u003c\/h4\u003e\u003cp\u003eNo — Red Sea specifically excludes the MAX Nano from this cup's compatibility. Check with us if you're not sure which MAX model you have.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Default Title","offer_id":54774156820771,"sku":"RED534","price":50.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-sea-reef-media-cup-46119453491491.webp?v=1790239295"},{"product_id":"red-sea-reef-spec-media-bag-1000ml-2bags-24-x-14cm","title":"Red Sea Reef Spec Media Bag 1000ml 2Bags 24 x 14cm","description":"\u003cp\u003e\u003cstrong\u003eKeep loose filter media exactly where it belongs.\u003c\/strong\u003e This two-pack of Red Sea Reef-Spec media bags holds up to 1000 mL of carbon, phosphate remover or other loose media each, in a fine mesh that contains granules while still letting water pass freely through the bed.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo bags per pack\u003c\/strong\u003e — run one while you prepare the next, so a media change never leaves your filter empty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1000 mL capacity each\u003c\/strong\u003e, sized for a standard media reactor chamber or sump filter basket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 × 14 cm\u003c\/strong\u003e with a secure closure that won't work loose in flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine mesh\u003c\/strong\u003e — contains carbon and other granular media without letting fines escape into your system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable\u003c\/strong\u003e — rinse and refill through many media changes rather than buying new bags each time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack contents\u003c\/td\u003e\n\u003ctd\u003e2 × media bags\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBag size\u003c\/td\u003e\n\u003ctd\u003e24 × 14 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003eUp to 1000 mL of media per bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eRED535\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarcode\u003c\/td\u003e\n\u003ctd\u003e7290100771068\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater and marine systems, and for any loose granular or pelleted media — carbon, phosphate remover, GFO. Not intended for fine powdered media, which can work through the mesh; use a finer specialist bag for that.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eRinse before first use and between media changes. Replace the bag itself if the mesh stretches, tears or the closure stops holding.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cp\u003ePairs with Red Sea Reef-Spec Carbon or any loose granular media you're running in a reactor or sump basket.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eSold as new stock; not a mechanical item requiring a manufacturer warranty, in addition to your rights under Australian Consumer Law. Ships as standard parcel freight.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill fine carbon dust leak through the mesh?\u003c\/h4\u003e\u003cp\u003eSome very fine dust can pass through any media bag on first use — a quick rinse before running it removes most of this.\u003c\/p\u003e\u003ch4\u003eCan I use these for phosphate remover or GFO instead of carbon?\u003c\/h4\u003e\u003cp\u003eYes — the mesh is sized for granular and pelleted media generally, not specifically for carbon.\u003c\/p\u003e\u003ch4\u003eHow many times can I reuse a bag?\u003c\/h4\u003e\u003cp\u003eMany media changes, provided the mesh and closure stay intact — check both each time you refill.\u003c\/p\u003e\u003ch4\u003eWill this fit in my media reactor?\u003c\/h4\u003e\u003cp\u003eAt 24 × 14 cm it suits most standard reactor chambers and sump filter baskets sized for up to 1000 mL of media; check your reactor's chamber dimensions if it's a compact or nano unit.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Default Title","offer_id":54774156853539,"sku":"RED535","price":22.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-sea-reef-spec-media-bag-43876683022627.webp?v=1790239294"},{"product_id":"bioscape-bioscape-ammonia-extraction-pad-25-x-45cm","title":"Bioscape Ammonia Extraction Pad 25 x 45cm","description":"\u003cp\u003e\u003cstrong\u003eTarget ammonia in your filter.\u003c\/strong\u003e This Bioscape ammonia extraction pad is a cut-to-fit filter media sheet that adsorbs ammonia from aquarium water - 25 x 45 cm of insurance for new tanks, quarantine systems and overstocked setups.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut-to-fit sheet\u003c\/strong\u003e - trim the 25 x 45 cm pad to fit power filters, canister filters, trickle and wet\/dry filters, powerheads and pond filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable polyfiber construction\u003c\/strong\u003e - doubles as light mechanical filtration while it removes ammonia.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFreshwater and marine safe.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne sheet, many filters\u003c\/strong\u003e - cut it into pieces for several filters, or keep it whole for one larger unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSheet size\u003c\/th\u003e\n\u003ctd\u003e25 x 45 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolyfiber, cut-to-fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemoves\u003c\/th\u003e\n\u003ctd\u003eAmmonia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003ePower filters, canister filters, trickle\/wet-dry filters, powerheads, pond filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBIS20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e9327975043452\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhen to use it\u003c\/h3\u003e\n\u003cp\u003eUse during initial tank cycling, after a bioload increase, or in a quarantine tank without an established biofilter. It's a chemical stop-gap, not a permanent fix - keep testing ammonia while it's in place and let the tank's own biofilter take over the job as it matures.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eBioscape doesn't publish a fixed exhaustion point for this pad, so use your ammonia test kit as the guide rather than a calendar: if ammonia stops dropping or starts climbing again, cut in a fresh section. Rinse debris out of the pad in tank water at water changes, but don't scrub it - that strips out the media doing the work.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for freshwater and marine aquariums, ponds, and quarantine or hospital tanks. Not a substitute for biological filtration long-term.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cp\u003eAn ammonia test kit to know when to cut in a fresh section, and Bioscape's Ammonia Extraction Cubes where a loose-media basket suits your filter better than a sheet.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by your rights as a consumer under Australian Consumer Law, in addition to any manufacturer terms.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eCan I cut it to any shape?\u003c\/h4\u003e\n\u003cp\u003eYes - that's the point of the sheet format. Trim it to fit your filter's media compartment or basket.\u003c\/p\u003e\n\u003ch4\u003eHow often do I replace it?\u003c\/h4\u003e\n\u003cp\u003eThere's no fixed interval published by the manufacturer - test your ammonia and replace the section once it stops working rather than on a schedule.\u003c\/p\u003e\n\u003ch4\u003eWill it remove nitrate or nitrite too?\u003c\/h4\u003e\n\u003cp\u003eNo, it's targeted at ammonia specifically. Nitrite and nitrate still need to be managed through your biological filter and water changes.\u003c\/p\u003e\n\u003ch4\u003eIs it reusable?\u003c\/h4\u003e\n\u003cp\u003eIt can be rinsed of debris between water changes, but once its ammonia-adsorbing capacity is exhausted it needs replacing, not just cleaning.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774334554403,"sku":"BIS20","price":14.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-ammonia-extraction-pad-25-x-45cm-218147.webp?v=1790230840"},{"product_id":"bioscape-bioscape-carbon-extraction-pad-25-x-45cm","title":"Bioscape Carbon Extraction Pad 25 x 45cm","description":"\u003cp\u003e\u003cstrong\u003eOne sheet, cut to fit whatever filter you own.\u003c\/strong\u003e The Bioscape Carbon Extraction Pad is a 25 × 45 cm carbon-impregnated poly-fibre sheet you trim to size, for power filters, trickle filters, wet\/dry filters, powerheads, canister filters and pond filters alike.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne size fits any filter\u003c\/strong\u003e — cut a strip or panel to match your filter's media chamber instead of hunting for a brand-specific cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 × 45 cm sheet\u003c\/strong\u003e — enough for several cuts on most household filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves tannins, odour and discolouration\u003c\/strong\u003e — activated carbon adsorbs dissolved organics, chlorine, phenols and residual medication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and marine safe\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBIS21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSheet size\u003c\/th\u003e\n\u003ctd\u003e25 × 45 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003eActivated-carbon-impregnated poly-fibre pad, cut-to-fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003ePower filters, trickle filters, wet\/dry filters, powerheads, canister filters, pond filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003cp\u003eBecause it's a cut-to-size sheet rather than a shaped cartridge, it fits almost any filter with an open media compartment — trim it to the chamber size with scissors. It won't help on a filter that only accepts a sealed, brand-specific cartridge with no room to fit trimmed media.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eAs a general guide, replace the cut section roughly every 4 weeks of continuous use — activated carbon has a limited adsorption life and stops improving water clarity once exhausted, though it's not harmful left in place. Rinse a fresh-cut piece before fitting to clear loose carbon dust.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e any filter with an open media tray or bag — freshwater or marine, including ponds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e filters that only take a sealed, pre-shaped cartridge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by your consumer guarantee rights under Australian Consumer Law if faulty on arrival. Ships as a small parcel.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow do I size a piece for my filter?\u003c\/h4\u003e\u003cp\u003eLay your old cartridge or media chamber on the sheet and cut around it with scissors, leaving a small margin so it sits snugly.\u003c\/p\u003e\u003ch4\u003eHow long does one sheet last?\u003c\/h4\u003e\u003cp\u003eDepends on your filter's chamber size — most household filters get several cuts from one sheet before it's used up.\u003c\/p\u003e\u003ch4\u003eIs it safe for shrimp and plants?\u003c\/h4\u003e\u003cp\u003eYes, plain activated carbon media doesn't affect invertebrates or live plants.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774334587171,"sku":"BIS21","price":14.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-carbon-extraction-pad-25-x-45cm-250915.webp?v=1790230840"},{"product_id":"bioscape-bioscape-phosphate-extraction-pad-25-x-45cm","title":"Bioscape Phosphate Extraction Pad 25 x 45cm","description":"\u003cp\u003e\u003cstrong\u003eA cut-to-fit pad that strips phosphate from your filter's water flow.\u003c\/strong\u003e Bioscape's Phosphate Extraction Pad is a 25 x 45 cm poly-fibre sheet impregnated with a phosphate-adsorbing resin, sized to be trimmed to fit power filters, trickle filters, wet\/dry filters, powerheads, canister filters and pond filters.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut-to-fit sheet\u003c\/strong\u003e — trim it to the exact shape of your filter's media tray rather than being limited to a fixed cartridge size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargets phosphate\u003c\/strong\u003e — adsorbs the phosphate that builds up from decaying food and waste, the nutrient behind most nuisance algae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and marine safe\u003c\/strong\u003e — the same pad works across both water types.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSheet size\u003c\/th\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e25 x 45 cm\u003c\/td\u003e\n\u003ctd\u003ePoly-fibre, phosphate-adsorbing resin\u003c\/td\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003cp\u003eBecause it's a full sheet rather than a pre-cut cartridge, it fits almost any filter that takes a media pad or sheet — power filters, trickle filters, wet\/dry sumps, powerhead pre-filters, canister filters and pond filters. Trim it to the shape of your existing media tray or cartridge frame.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater and marine aquariums running elevated or tested phosphate levels. Not a substitute for regular water changes and feeding control — like any phosphate media, it treats a symptom rather than the underlying nutrient load.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eBioscape doesn't publish a fixed replacement interval for this pad. Test your phosphate level periodically and replace the section in use once readings start climbing again — heavily stocked or overfed tanks will exhaust it faster than lightly stocked ones.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered against manufacturing defects under Bioscape's warranty, in addition to your rights under Australian Consumer Law.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I cut it into multiple pieces and use them over time?\u003c\/h4\u003e\u003cp\u003eYes — that's the point of a sheet over a pre-cut cartridge. Cut off what you need now and store the rest in a sealed bag for later.\u003c\/p\u003e\u003ch4\u003eHow do I know when to replace the pad?\u003c\/h4\u003e\u003cp\u003eTest your phosphate level. Once it starts climbing again, the section in use has adsorbed as much as it can and it's time to cut a fresh piece.\u003c\/p\u003e\u003ch4\u003eIs it reef safe?\u003c\/h4\u003e\u003cp\u003eBioscape markets this pad for both freshwater and marine use, including reef systems dealing with elevated phosphate.\u003c\/p\u003e\u003ch4\u003eDoes it work in a pond filter?\u003c\/h4\u003e\u003cp\u003eYes — Bioscape lists pond filters alongside aquarium canister, power, trickle and wet\/dry filters as suited to this pad.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774334619939,"sku":"BIS22","price":14.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-phosphate-extraction-pad-25-x-45cm-283683.webp?v=1790230840"},{"product_id":"bioscape-bioscape-nitrate-extraction-pad-25-x-45cm","title":"Bioscape Nitrate Extraction Pad 25 x 45cm","description":"\u003cp\u003e\u003cstrong\u003eA cut-to-fit filter pad that pulls nitrate out of the water as it flows through your filter.\u003c\/strong\u003e The Bioscape Nitrate Extraction Pad is a 25 x 45 cm sheet of poly-fibre impregnated with nitrate-adsorbing resin, sized to trim down to whatever filter box, canister tray or power filter cartridge you're running.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut to fit\u003c\/strong\u003e — one large sheet trims down with scissors to match your specific filter, rather than being locked to one cartridge shape.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargets nitrate specifically\u003c\/strong\u003e — the resin adsorbs nitrate rather than acting as a general-purpose mechanical pad.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or saltwater\u003c\/strong\u003e — works the same way in either water type.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSheet size\u003c\/th\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003cth\u003eRemoves\u003c\/th\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e25 x 45 cm (approx. 254 x 457 mm)\u003c\/td\u003e\n\u003ctd\u003ePoly-fibre, resin-impregnated\u003c\/td\u003e\n\u003ctd\u003eNitrate\u003c\/td\u003e\n\u003ctd\u003eFresh or saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003cp\u003eThe full sheet fits power filters, trickle filters, wet\/dry filters, powerheads, canister filters and pond filters — cut a piece to the size of your existing filter pad or media tray rather than expecting a drop-in fit straight out of the pack. One sheet typically yields several cut-to-size pieces depending on your filter's dimensions.\u003c\/p\u003e\u003ch3\u003eWhich Bioscape extraction pad do I need?\u003c\/h3\u003e\u003cp\u003eBioscape's Tropic extraction pad range targets different parameters from the same 25 x 45 cm sheet format: carbon pads pull out dissolved organics, discolouration and odour; ammonia pads target ammonia directly, useful during cycling or after a stocking spike; this nitrate pad targets the nitrate that builds up between water changes. Running more than one type means using separate compartments or trays rather than layering them into one.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater and marine aquariums carrying a nitrate load from feeding, stocking or infrequent water changes. Not the right pad if what you're chasing is ammonia, discolouration or odour — those call for the ammonia or carbon versions instead.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eRinse the cut pad in tank or dechlorinated water before use to clear manufacturing dust. Bioscape doesn't publish a fixed replacement interval for this pad. As a general guide for resin-based nitrate media, plan on replacing a cut section every four to eight weeks, and confirm against your own nitrate test rather than the calendar alone.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered against manufacturing defects under Bioscape's warranty, in addition to your rights under Australian Consumer Law.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow do I cut it to fit my filter?\u003c\/h4\u003e\u003cp\u003eLay your existing filter pad or media tray over the sheet as a template and trim around it with scissors — the pad is designed to be cut down rather than used as one fixed shape.\u003c\/p\u003e\u003ch4\u003eHow often do I need to replace it?\u003c\/h4\u003e\u003cp\u003eNo fixed interval is published for the pad itself. As a general guide for resin-based nitrate media, four to eight weeks is a reasonable starting point — test your nitrate to confirm rather than relying on a fixed schedule.\u003c\/p\u003e\u003ch4\u003eWill this replace my water changes?\u003c\/h4\u003e\u003cp\u003eNo. It holds nitrate down between changes; it doesn't remove the reason nitrate is rising in the first place.\u003c\/p\u003e\u003ch4\u003eCan I use it in a reef tank?\u003c\/h4\u003e\u003cp\u003eBioscape markets it as suitable for fresh or saltwater use. Introduce any new chemical media to a reef system gradually and keep testing.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774334652707,"sku":"BIS23","price":14.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-nitrate-extraction-pad-25-x-45cm-316451.webp?v=1790230840"},{"product_id":"bioscape-bioscape-polyfiber-filter-pad-25-x-45cm","title":"Bioscape Polyfiber Filter Pad 25 x 45cm","description":"\u003cp\u003e\u003cstrong\u003eA cut-to-fit sheet of mechanical media that polishes water clear.\u003c\/strong\u003e The Bioscape Polyfiber Filter Pad is a 25 × 45 cm sheet of fine polyester fibre you trim to fit almost any filter tray — hang-on, canister, sump, trickle or pond — to trap fine suspended particles the coarser stages miss.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut to any shape\u003c\/strong\u003e — trim it to fit power filters, trickle and wet\/dry filters, powerhead prefilters, canister baskets, sump trays and pond filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine mechanical polish\u003c\/strong\u003e — the tight fibre weave catches small free-floating particles that coarser foam and media let through, for genuinely clear water rather than just cloudy-to-hazy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and marine safe\u003c\/strong\u003e — inert polyfiber that doesn't affect pH, hardness or salinity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge sheet, low waste\u003c\/strong\u003e — one 25 × 45 cm sheet cuts multiple pad refills for most hang-on and internal filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eFiltration stage\u003c\/th\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e25 x 45 cm\u003c\/td\u003e\n\u003ctd\u003ePolyfiber (polyester mechanical media)\u003c\/td\u003e\n\u003ctd\u003eFine mechanical \/ polishing\u003c\/td\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003cp\u003eBecause it's supplied as an uncut sheet rather than a shaped cartridge, it fits any filter that takes a mechanical media pad — hang-on power filters, internal powerhead prefilters, canister filter baskets, wet\/dry and trickle towers, and pond filter boxes. Trim it slightly oversized so it seats firmly against the tray edges rather than leaving gaps water can bypass through.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable as the final mechanical polishing stage in freshwater and marine filters of any type. Not intended as the sole filtration stage on a heavily stocked tank — run it after coarse sponge or floss media, since a clean polyfiber pad clogs quickly if it's catching large debris as well as fine particulate.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eBioscape doesn't publish a fixed replacement interval for this pad — in practice, rinse it in tank water during routine filter maintenance and replace the trimmed piece once it's visibly grey, compacted or slow to pass water, rather than to a set schedule. Because it's supplied as a full sheet, a single purchase covers several replacement cuts.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered against manufacturing defects under Bioscape's warranty, in addition to your rights under Australian Consumer Law.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I rinse and reuse it, or does it need replacing each time?\u003c\/h4\u003e\u003cp\u003eYou can rinse it in tank water a few times while it still passes water freely. Once it's compacted, discoloured grey-brown or restricting flow, cut a fresh piece from the sheet rather than continuing to rinse it.\u003c\/p\u003e\u003ch4\u003eWhere in the filter should it go?\u003c\/h4\u003e\u003cp\u003eLast in the flow path, after any coarse sponge or floss stage. It's a polishing media — putting it first means it clogs on debris a coarser pad should be catching.\u003c\/p\u003e\u003ch4\u003eIs one sheet enough for more than one filter?\u003c\/h4\u003e\u003cp\u003eYes. At 25 x 45 cm it's larger than most single filter trays, so most buyers cut several replacement pads from one sheet over time.\u003c\/p\u003e\u003ch4\u003eWill it work in a marine or reef tank?\u003c\/h4\u003e\u003cp\u003eYes — it's an inert polyester fibre that's safe for both freshwater and marine setups and won't affect salinity or water chemistry.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774334685475,"sku":"BIS24","price":10.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-polyfiber-43876758225187.webp?v=1790239537"},{"product_id":"bioscape-bioscape-24ltr-nano-replace-polywool-filter-pads-3-pack","title":"Bioscape 24ltr Nano Replace Polywool Filter Pads 3 Pack","description":"\u003cp\u003e\u003cstrong\u003eKeep the water in your Bioscape 24 L Nano crystal clear.\u003c\/strong\u003e These polywool filter pads are the mechanical-stage replacement media for the built-in filter chamber in the Bioscape 24 L Nano Aquarium Unit, supplied as a three-pack so you always have a fresh pad on hand.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine polywool weave\u003c\/strong\u003e — traps suspended particles before they cloud the water column.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut to fit\u003c\/strong\u003e — sized for the Nano 24 L Unit's filter chamber, no trimming needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-pack\u003c\/strong\u003e — several changes' worth in one order, so you're not caught short.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical stage only\u003c\/strong\u003e — sits ahead of the unit's biological media to protect it from clogging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eBIS138\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarcode\u003c\/td\u003e\n\u003ctd\u003e9327975050146\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e3 pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia type\u003c\/td\u003e\n\u003ctd\u003ePolywool (mechanical filtration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eBioscape 24 L Nano Aquarium Unit (built-in filter chamber)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWill it fit my tank?\u003c\/h3\u003e\u003cp\u003eThis pad is sized specifically for the Bioscape 24 L Nano Aquarium Unit's internal filter box. It is not sized for the Bioscape Tropic Easy Clean hang-on filters or other Bioscape filter ranges — those use their own foam, carbon and bio-ball cartridges.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater or marine set-ups running the Nano 24 L Unit's built-in filter. Not suitable as a stand-alone biological or chemical filter stage — it removes suspended debris only, and won't process ammonia or nitrite on its own.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eRinse the pad in tank water at each water change to extend its life. Replace it once it has browned and compacted, rather than on a fixed schedule — a pad that's still white and open-textured is still working. Swapping it before the biological media behind it keeps the whole filter running efficiently.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Bioscape's standard consumer guarantees under Australian Consumer Law, in addition to any manufacturer warranty. Ships standard parcel post from Nick's Aquarium Oceanarium Terrarium.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow often do I need to change this pad?\u003c\/h4\u003e\u003cp\u003eThere's no fixed interval — check it at each water change and replace once it's visibly browned and starting to compact, usually every few weeks in an established tank.\u003c\/p\u003e\u003ch4\u003eWill this fit any other Bioscape filter?\u003c\/h4\u003e\u003cp\u003eNo. It's cut specifically for the Nano 24 L Unit's own filter chamber, not the Easy Clean hang-on range or other Bioscape units.\u003c\/p\u003e\u003ch4\u003eShould I rinse it in tap water?\u003c\/h4\u003e\u003cp\u003eRinse in removed tank water where possible. Tap water's chlorine or chloramine can kill some of the beneficial bacteria living on the media behind the pad.\u003c\/p\u003e\u003ch4\u003eDoes this pad remove ammonia?\u003c\/h4\u003e\u003cp\u003eNo — this is the mechanical stage only, catching debris. Ammonia and nitrite are handled by the biological media sitting behind it in the filter chamber.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774338421027,"sku":"BIS138","price":6.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-24ltr-nano-replace-polywool-filter-pads-3--792163.webp?v=1790230840"},{"product_id":"bioscape-bioscape-40ltr-nano-replace-polywool-filter-pads-3-pack","title":"Bioscape 40ltr Nano Replace Polywool Filter Pads 3 Pack","description":"\u003cp\u003e\u003cstrong\u003eThe first line of defence for a crystal-clear 40 L nano.\u003c\/strong\u003e This three-pack of polywool filter pads is the mechanical-stage replacement for the Bioscape Nano Aquarium Unit 40 L (BIS135) — the pad that catches fine particles before they reach the biological and chemical media behind it.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine polywool weave\u003c\/strong\u003e — traps suspended particles that a sponge alone lets through, so the tank clears faster after a clean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect fit\u003c\/strong\u003e — cut and sized for the Bioscape Nano 40 L filter compartment, no trimming needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-pack\u003c\/strong\u003e — several changes on hand, so you're never waiting on a reorder mid-clean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects the media behind it\u003c\/strong\u003e — catching debris here keeps the zeolite\/carbon cartridge and bio-cylinder working longer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat it fits\u003c\/h3\u003e\u003cp\u003eFits the mechanical stage of the Bioscape Nano Aquarium Unit 40 L (BIS135) filter box. It is not interchangeable with the zeolite\/carbon or bio-cylinder media stages in the same unit, or with the 24 L and 61 L Nano units, which use their own sized media.\u003c\/p\u003e\u003ch3\u003eCare and replacement\u003c\/h3\u003e\u003cp\u003eThere's no fixed changeout date published for this pad — how fast it browns depends on bioload and feeding. As a guide, check it weekly and swap it once it's visibly discoloured or slow to let water through. Rinse a lightly soiled pad in old tank water to extend it a few more days rather than binning it early.\u003c\/p\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cp\u003eFreshwater and marine nano setups running the Bioscape 40 L Nano Aquarium Unit. Not a substitute for biological or chemical media — this pad handles mechanical filtration only.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow do I know when to change the pad?\u003c\/h4\u003e\u003cp\u003eSwap it once it looks brown or grey and water starts to flow through more slowly than usual — that's the pad telling you it's full.\u003c\/p\u003e\u003ch4\u003eCan I rinse and reuse it?\u003c\/h4\u003e\u003cp\u003eA light rinse in old tank water (never tap water, which will kill the bacteria on the pad) can buy a few extra days, but polywool isn't designed for repeated reuse — replace it once it's genuinely dirty.\u003c\/p\u003e\u003ch4\u003eWill this fit the 24 L or 61 L Nano units?\u003c\/h4\u003e\u003cp\u003eNo. Each Bioscape Nano size uses its own filter pad cut to size — check your unit's litre rating before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarranty and delivery:\u003c\/strong\u003e Covered by your consumer guarantee rights under Australian Consumer Law. Standard freight applies.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":54774338453795,"sku":"BIS139","price":7.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-bioscape-40ltr-nano-replace-polywool-filter-pads-3--824931.webp?v=1790230840"},{"product_id":"red-sea-filter-media-bags","title":"Red Sea Filter Media Bags","description":"\u003cp\u003e\u003cstrong\u003eA media bag, not a filter sock — know which one you need.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRed Sea Filter Media Bags are genuine Red Sea part R37401: high quality drawstring nylon bags, 12.5 x 25 cm (5\" x 10\"), two per pack, reusable. This is the same bag Red Sea supplies with its REEF-SPEC Carbon, now sold on its own for holding any loose chemical or mechanical media in a sump or filter chamber. It is sized on dimensions, not on a model number.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrawstring closure\u003c\/strong\u003e — fills, ties and reopens without clips, so you can top up or swap media without replacing the bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo per pack\u003c\/strong\u003e — enough to run one and rinse one, which is how most people actually use them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable\u003c\/strong\u003e — Red Sea lists reusability as a feature. Rinse and refill rather than discard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTakes any loose media\u003c\/strong\u003e — carbon, GFO, phosphate remover, resins. Red Sea's own wording is that it suits all types of aquarium filter media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe bag Red Sea ships with REEF-SPEC Carbon\u003c\/strong\u003e — if you have used their carbon, this is the bag it came in.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRed Sea part number\u003c\/th\u003e\n\u003ctd\u003eR37401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBag size\u003c\/th\u003e\n\u003ctd\u003e12.5 x 25 cm (5\" x 10\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e2 bags per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eNylon, drawstring closure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReusable\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended media\u003c\/th\u003e\n\u003ctd\u003eAll types of loose aquarium filter media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMicron rating\u003c\/th\u003e\n\u003ctd\u003eNot published by Red Sea — see below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSome overseas dealers list this bag as 14 x 25 cm and as holding 1000 mL. Red Sea's own figure is 12.5 x 25 cm, and Red Sea publishes no volume, so that is what this page states.\u003c\/p\u003e\n\n\u003ch3\u003eWill it fit my system?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis is not a model-specific part, and we are not going to pretend it is.\u003c\/strong\u003e Red Sea publishes no compatibility list for R37401 — no REEFER generation, no MAX model, nothing. It does not appear in any Red Sea manual, sump drawing or exploded parts diagram. It is a loose drawstring bag with no holder interface.\u003c\/p\u003e\n\u003cp\u003eSo the honest answer to \"will it fit?\" is dimensional. A 12.5 x 25 cm bag will sit in any sump chamber, media compartment or filter basket that has room for it. Measure the space you want to put it in. If a bag that size fits, this bag fits.\u003c\/p\u003e\n\u003cp\u003eFor reference, Red Sea's Filter Media Cup (part 42177) holds one litre of media, is described by Red Sea as suitable for REEFER and MAX systems, and ships with a media bag included. That is a claim about the cup, not about this bag, so do not read it as a fitment guarantee for R37401.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this is not\u003c\/h3\u003e\n\u003cp\u003eThe most common mistake with this part is buying it when you actually wanted a micron filter bag. They are different products with different jobs.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eIf you want to\u003c\/th\u003e\n\u003cth\u003eYou need\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHold carbon, GFO or resin in a sump\u003c\/th\u003e\n\u003ctd\u003eThis bag, R37401 — a drawstring media bag with no rated pore size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMechanically filter water through a rated pore size\u003c\/th\u003e\n\u003ctd\u003eA Red Sea micron filter bag — R42195 (100 micron felt), R42196 (225 micron felt) or R42197 (225 micron thin mesh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrop media into a fitted holder in a REEFER or MAX sump\u003c\/th\u003e\n\u003ctd\u003eThe Red Sea Filter Media Cup, part 42177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eRed Sea publishes no micron rating for R37401\u003c\/strong\u003e, only that it has an ideal mesh size for aquarium filter media. If your setup depends on a specific pore size, this is not the part — buy a rated micron bag instead.\u003c\/p\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRinse in old tank water or dechlorinated water, never under a hot tap.\u003c\/li\u003e\n\u003cli\u003eWash the bag out when you change media — a clogged bag chokes flow through the media inside it.\u003c\/li\u003e\n\u003cli\u003eRed Sea publishes no replacement interval. Replace when the mesh thins, the seams give, or the drawstring stops holding.\u003c\/li\u003e\n\u003cli\u003eDo not overfill. Media needs water moving through it, not packed around it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003ch4\u003eSuitable for\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eActivated carbon, GFO and phosphate removers\u003c\/li\u003e\n\u003cli\u003eNitrate and organic removal resins\u003c\/li\u003e\n\u003cli\u003eAny loose granular media in a sump chamber or filter basket\u003c\/li\u003e\n\u003cli\u003eFreshwater and marine systems alike\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNot suitable for\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated mechanical filtration.\u003c\/strong\u003e No published micron rating means no guaranteed particle retention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse as a filter sock in a sock holder.\u003c\/strong\u003e It has no collar or ring to seat in one.\u003c\/li\u003e\n\u003cli\u003eVery fine powdered media, which will wash straight through a mesh of unstated aperture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-diy-net-cover-90cmx60cm-36-x-24\"\u003eRed Sea DIY Net Cover\u003c\/a\u003e — the other genuine Red Sea accessory most REEFER and MAX owners get around to eventually.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-marine-care-nitrite-nitrate-test-60-100-tests\"\u003eRed Sea Marine Care Nitrite\/Nitrate Test Kit\u003c\/a\u003e — measure the nitrate before and after you run a resin, or you will never know if it worked.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-marine-care-multi-test-kit\"\u003eRed Sea Marine Care Multi Test Kit\u003c\/a\u003e — the routine four parameters for a system running chemical media.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-coral-pro-salt-20kg-refill-box-600ltr\"\u003eRed Sea Coral Pro Salt\u003c\/a\u003e — for the water changes that go alongside media changes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eRed Sea's warranty expressly does not cover normal wear and tear, or items that have a limited natural life or are consumable — Red Sea names filter socks and sponges among its examples. A media bag is a consumable and is not covered for wear. Any manufacturer warranty is in addition to your rights under the Australian Consumer Law and does not limit them.\u003c\/p\u003e\n\u003cp\u003eStandard freight. No dangerous goods or oversize handling applies.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat is the Red Sea part number for these media bags?\u003c\/h4\u003e\n\u003cp\u003eR37401. Red Sea's own product page does not print the part number, but it is the code used by Red Sea's spare parts system and by Red Sea distributors for the 2-pack drawstring media bag.\u003c\/p\u003e\n\u003ch4\u003eWhich Red Sea systems do these bags fit?\u003c\/h4\u003e\n\u003cp\u003eRed Sea does not publish a model compatibility list for this bag, because it is a universal drawstring bag rather than a fitted part. At 12.5 x 25 cm it will sit in any sump chamber, media compartment or basket with room for it. Measure the space before ordering.\u003c\/p\u003e\n\u003ch4\u003eWhat micron are Red Sea filter media bags?\u003c\/h4\u003e\n\u003cp\u003eRed Sea does not publish a micron rating for R37401 — only that the mesh size suits aquarium filter media generally. If you need a rated pore size, use Red Sea's micron filter bags instead: R42195 at 100 micron, or R42196 and R42197 at 225 micron.\u003c\/p\u003e\n\u003ch4\u003eHow many bags come in a pack?\u003c\/h4\u003e\n\u003cp\u003eTwo. Red Sea's own specification reads 12.5 x 25 cm, 2 units.\u003c\/p\u003e\n\u003ch4\u003eCan I reuse them?\u003c\/h4\u003e\n\u003cp\u003eYes. Red Sea lists the bag as reusable. Rinse it out at each media change and replace it when the mesh thins or the drawstring gives up.\u003c\/p\u003e\n\u003ch4\u003eCan I use these in a freshwater tank?\u003c\/h4\u003e\n\u003cp\u003eYes. It is an inert nylon bag holding whatever media you put in it, so the water type makes no difference to the bag itself.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Default Title","offer_id":55242229055779,"sku":"BA8874","price":12.6,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-sea-filter-media-bags-43876723327267.webp?v=1790239539"},{"product_id":"seachem-phosbond-bag","title":"Seachem PhosBond (Bag)","description":"\u003cp\u003e\u003cstrong\u003eThe same phosphate and silicate remover as loose PhosBond, pre-packed in its own media bag so you can drop it straight into the filter.\u003c\/strong\u003e Seachem PhosBond (Bag) combines ferric oxide coated aluminium oxide to pull both phosphate and silicate out of fresh and saltwater in one pass, supplied ready to use without needing a separate mesh bag or reactor.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves phosphate and silicate together\u003c\/strong\u003e — the same dual-action media as loose PhosBond.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-bagged\u003c\/strong\u003e — no need to buy or fill a separate media bag before use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater safe\u003c\/strong\u003e — one product for either system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable\u003c\/strong\u003e — can be dried and returned to service until exhausted, and doesn't leach phosphate or silicate back out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo sizes\u003c\/strong\u003e — 250 g and 500 g, sold by weight rather than volume.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSeachem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003ePhosBond, pre-packed in a media bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition\u003c\/th\u003e\n\u003ctd\u003eFerric oxide coated aluminium oxide (GFO + aluminium oxide blend)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemoves\u003c\/th\u003e\n\u003ctd\u003ePhosphate and silicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack sizes\u003c\/th\u003e\n\u003ctd\u003e250 g, 500 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse in\u003c\/th\u003e\n\u003ctd\u003eCanister filter, media chamber, box filter or high-flow area of a trickle filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReusable\u003c\/th\u003e\n\u003ctd\u003eYes — dry and return to service until exhausted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\u003cp\u003eSeachem publishes PhosBond's dose rate by volume (60 mL per 200 L saltwater, or 60 mL per 400 L freshwater) rather than by weight, and we haven't been able to confirm an exact gram-to-millilitre conversion directly from Seachem for this pre-bagged pack. As a guide, the 500 g bag is roughly double the media of the 250 g bag — for a precise dose on a specific tank size, our loose Seachem PhosBond sizes (measured in mL) let you dose against Seachem's published volume-based rate directly, or ask our team and we'll help you match the bagged pack to your system.\u003c\/p\u003e\u003ch3\u003eSetup and use\u003c\/h3\u003e\u003cp\u003ePlace the bag directly into a canister filter, media chamber, box filter, or the high-flow section of a trickle filter — no need to decant it into your own media bag first. Test phosphate after 4 days in place; if it hasn't dropped to around 0.02 mg\/L, leave it running and test again in a few more days. Once levels are low and stable, the media can stay in place until they start climbing again.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e reef tanks and FOWLR systems fighting nuisance algae, freshwater tanks with excess phosphate, anyone who'd rather drop a ready-made bag straight in than fill their own.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e precise dosing where you need to match Seachem's published mL-based rate exactly — for that, the loose PhosBond sizes give you a direct volume to work from.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eThe media can be removed, rinsed and dried between uses and returned to service until it's fully exhausted — it doesn't release what it's captured back into the water. Replace it once it stops bringing phosphate back down after a few days in place.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Seachem's standard quality guarantee at the time of sale, in addition to your rights under Australian Consumer Law. Ships as a standard parcel.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWhat's the difference between this and the loose PhosBond?\u003c\/h4\u003e\u003cp\u003eSame media, same job — this pack is already inside a media bag and sold by weight (250 g or 500 g) rather than volume, so there's nothing extra to buy or fill before using it.\u003c\/p\u003e\u003ch4\u003eHow do I know how much to use for my tank size?\u003c\/h4\u003e\u003cp\u003eSeachem's published dose rate is by volume, not weight, so for a precise match to a specific tank size the loose mL-sized PhosBond is easier to dose exactly. For this bagged pack, treat 500 g as roughly double the 250 g bag and check with us if you want help sizing it to your system.\u003c\/p\u003e\u003ch4\u003eCan I use it in a freshwater tank?\u003c\/h4\u003e\u003cp\u003eYes — PhosBond works in both freshwater and saltwater; the underlying dose rate is simply lower for freshwater than saltwater.\u003c\/p\u003e\u003ch4\u003eDo I need my own media bag as well?\u003c\/h4\u003e\u003cp\u003eNo — this pack already comes bagged and ready to place into your filter.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"250g","offer_id":55335432290595,"sku":"BA8880","price":20.0,"currency_code":"AUD","in_stock":true},{"title":"500g","offer_id":55242229317923,"sku":"BA8879","price":44.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-phosbond-bag-43160354881827.webp?v=1790237816"},{"product_id":"aqua-medic-antiphos-fe","title":"Aqua Medic Antiphos Fe","description":"\u003cp\u003e\u003cstrong\u003eIron-based GFO that strips phosphate before algae gets to use it.\u003c\/strong\u003e Aqua Medic Antiphos Fe is an iron hydroxide filter media that binds phosphate and silicate from aquarium water, starving the nuisance algae that feed on them. It is aluminium-free and safe for fish, invertebrates and plants when run correctly in a reactor or filter bag.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinds phosphate and silicate\u003c\/strong\u003e — removes the two nutrients that drive nuisance and diatom algae growth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium-free iron hydroxide\u003c\/strong\u003e — will not leach aluminium into the water column the way some older GFO media can.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or marine\u003c\/strong\u003e — suitable for both, including reef systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-lasting capacity\u003c\/strong\u003e — roughly 10 g of phosphate bound per kilogram of media before it is exhausted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo pack sizes\u003c\/strong\u003e — 500 g and 1000 g, to match reactor size and system load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVariant\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003eAA2595\u003c\/td\u003e\n\u003ctd\u003e14025901143423\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 g\u003c\/td\u003e\n\u003ctd\u003eAA2771\u003c\/td\u003e\n\u003ctd\u003e4025901143430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eHow much tank does a pack cover?\u003c\/h3\u003e\u003cp\u003eAqua Medic rates the 500 g pack as sufficient for a 300 L aquarium under normal bioload for approximately three to six months, depending on stocking and feeding. The 1000 g pack carries twice the media by weight; treat that as a larger-system or longer-interval option rather than assuming an exact doubled figure, since binding capacity is also affected by flow rate and how saturated the phosphate load already is.\u003c\/p\u003e\u003ch3\u003eSetting it up\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRinse the media before use to clear dust that would otherwise cloud the tank.\u003c\/li\u003e\n\u003cli\u003eRun it in a fluidised media reactor or a mesh filter bag, in good flow — GFO works by contact, so a reactor that keeps the media gently tumbling outperforms a bag sitting still in a sump corner.\u003c\/li\u003e\n\u003cli\u003eReplace before it is fully exhausted rather than waiting for phosphate to rebound — test your phosphate level and swap the media once the reading plateaus rather than climbs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater and marine systems, including reef tanks, where phosphate or silicate is driving algae. Not a fix for an overstocked or overfed tank on its own — it treats the symptom; feeding and stocking are the underlying lever.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eTest phosphate regularly rather than running to a fixed calendar date — bioload varies run to run. Sudden, heavy dosing of fresh GFO into an already low-phosphate reef tank can drop phosphate too fast for corals used to a higher baseline; introduce a fresh batch gradually if your tank already reads low.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by the manufacturer's standard shelf-life guarantee, in addition to your rights under Australian Consumer Law. Ships standard parcel from North Lakes, QLD.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this affect my corals?\u003c\/h4\u003e\u003cp\u003eUsed as directed it is safe for reef systems, but drop phosphate gradually if your tank already reads low — corals adapted to a slightly higher baseline can react to a sudden swing.\u003c\/p\u003e\u003ch4\u003eReactor or filter bag — which is better?\u003c\/h4\u003e\u003cp\u003eA reactor that keeps the media tumbling gets more even contact and typically better performance per gram; a filter bag is a reasonable lower-cost option for smaller systems.\u003c\/p\u003e\u003ch4\u003eHow do I know when to replace it?\u003c\/h4\u003e\u003cp\u003eTest phosphate on a regular schedule. Once the reading stops falling and plateaus, the media is exhausted even if it still looks physically intact.\u003c\/p\u003e\u003ch4\u003eDoes it work in freshwater?\u003c\/h4\u003e\u003cp\u003eYes — it is not reef-specific. Freshwater planted and community tanks fighting phosphate-driven algae can run it the same way.\u003c\/p\u003e","brand":"Aqua Medic","offers":[{"title":"500g","offer_id":55242265985315,"sku":"AA2595","price":34.95,"currency_code":"AUD","in_stock":false},{"title":"1000g","offer_id":55335403028771,"sku":"AA2771","price":67.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/aqua-medic-antiphos-fe-43106863087907.webp?v=1790237816"},{"product_id":"reef-pure-dual-media-reactor","title":"Reef Pure Dual Media Reactor","description":"\u003cp\u003e\u003cstrong\u003eRuns GFO or carbon in two chambers so media does its job properly.\u003c\/strong\u003e The Reef Pure Dual Media Reactor is a twin-chamber canister that fluidises loose filter media — GFO, activated carbon, or both at once, one in each chamber — so it works at full efficiency instead of channelling or clumping in a bag. It needs a submersible feed pump (sold separately) to drive water through, and connects via 12 mm quick-connect fittings on 1\/2\" ports.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo independent chambers\u003c\/strong\u003e — run GFO and carbon at the same time, each in its own cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven, controlled flow\u003c\/strong\u003e — media sits in a fluidised bed rather than a static bag, so the full volume stays in contact with water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwivelling 90° elbows\u003c\/strong\u003e on the inlet and outlet for tidy plumbing runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefillable cartridges\u003c\/strong\u003e — reload with your own bulk media rather than buying proprietary pods.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eReef Pure RO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eDual-chamber media reactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e40 x 21 x 21 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e3.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia capacity\u003c\/th\u003e\n\u003ctd\u003eApprox. 300 g carbon or 290 g GFO per chamber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnections\u003c\/th\u003e\n\u003ctd\u003e12 mm quick-connect, 1\/2\" ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eAA0566\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e740528975052\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWill it fit my setup?\u003c\/h3\u003e\n\u003cp\u003eYou'll need a submersible pump to feed it — this reactor doesn't include one. Each chamber takes roughly three cups (about 300 g) of carbon or two cups (about 290 g) of GFO; check your media's bag against those volumes before filling to avoid overpacking.\u003c\/p\u003e\n\u003ch3\u003eWhat's included \/ Not included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e the dual housing, two refillable cartridges, 3 m of 12 mm rigid tubing, a 12 mm quick-connect ball valve, and swivelling inlet\/outlet elbows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e filter media and the submersible feed pump — both sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e running GFO, activated carbon, or other loose granular media in a sump or external canister setup, in freshwater or marine systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e biopellet media — Reef Pure states this reactor is not designed for biopellets, which need a different (tumbling) flow pattern to avoid clumping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eRinse new media before loading to settle dust. Check and replace GFO or carbon on the schedule appropriate to your media brand — Reef Pure doesn't publish a fixed interval for the reactor itself, since exhaustion depends on which media you run and your tank's bioload.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cp\u003eA submersible feed pump sized to your sump, plus your GFO or activated carbon of choice.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by the manufacturer against faults in materials and workmanship, in addition to your rights under Australian Consumer Law. Standard shipping at 3.1 kg and 40 x 21 x 21 cm.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eCan I run GFO and carbon at the same time?\u003c\/h4\u003e\n\u003cp\u003eYes — that's the point of the dual chamber design. Load one cartridge with GFO and the other with carbon and run them together.\u003c\/p\u003e\n\u003ch4\u003eCan I use it for biopellets?\u003c\/h4\u003e\n\u003cp\u003eNo. Reef Pure states this reactor is not suitable for biopellet media, which needs a tumbling flow rather than the fluidised bed this unit provides.\u003c\/p\u003e\n\u003ch4\u003eDo I need a separate pump?\u003c\/h4\u003e\n\u003cp\u003eYes. The reactor has no built-in pump — you'll need a submersible feed pump plumbed to the 12 mm quick-connect inlet.\u003c\/p\u003e\n\u003ch4\u003eHow much media does each chamber hold?\u003c\/h4\u003e\n\u003cp\u003eReef Pure states roughly three cups (about 300 g) of carbon or two cups (about 290 g) of GFO per cartridge.\u003c\/p\u003e","brand":"Reef Pure RO","offers":[{"title":"Default Title","offer_id":55242269032739,"sku":"AA0566","price":149.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/reef-pure-dual-media-reactor-43106816885027.webp?v=1790231147"},{"product_id":"api-phos-zorb-treats-210l","title":"API Phos Zorb - treats 210L","description":"\u003cp\u003e\u003cstrong\u003eOne pouch strips phosphate and silicate before algae can use them.\u003c\/strong\u003e API Phos-Zorb is a synthetic adsorption filter media that removes phosphate and silicate from freshwater and saltwater aquariums. It ships as a single 5.25 oz (approximately 149 g) mesh pouch rated to treat up to 55 US gallons (approximately 208 L).\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves phosphate and silicate\u003c\/strong\u003e — the two nutrients that build up from feeding and waste and fuel nuisance algae once they accumulate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreats up to 208 L per pouch\u003c\/strong\u003e — rated for a typical 55 US gallon (208 L) freshwater or saltwater tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in mesh pouch\u003c\/strong\u003e — no dosing or mixing. It sits in the filter's flow path and adsorbs passively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse to activate\u003c\/strong\u003e — a few minutes under tap water clears dust and starts the media working; it will feel warm as it does, which is normal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater\u003c\/strong\u003e — one pouch formulation works in either water type.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eChemical filter media — phosphate and silicate remover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet weight\u003c\/th\u003e\n\u003ctd\u003e5.25 oz (approx. 149 g) mesh pouch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTreats\u003c\/th\u003e\n\u003ctd\u003eUp to 55 US gallons (approx. 208 L) per pouch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemoves\u003c\/th\u003e\n\u003ctd\u003ePhosphate and silicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition\u003c\/th\u003e\n\u003ctd\u003eSynthetic adsorption media — exact composition not disclosed by API\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePreparation\u003c\/th\u003e\n\u003ctd\u003eRinse under tap water for several minutes before use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReplacement interval\u003c\/th\u003e\n\u003ctd\u003eEvery 2 months, or sooner if a test shows phosphate or silicate present\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFreight\u003c\/th\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eReplace the pouch every 2 months even if it looks unchanged — exhausted adsorption media stops working long before it looks any different. Test phosphate and silicate between changes; a reading that climbs back above 0 ppm phosphate or 0.5 ppm silicate means the pouch is spent early and should be swapped sooner than the two-month mark.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreshwater and saltwater aquariums running high phosphate or silicate from feeding, waste or tap water\u003c\/li\u003e\n\u003cli\u003eReef tanks where excess phosphate is limiting hard or soft coral growth\u003c\/li\u003e\n\u003cli\u003ePlanted and community tanks with persistent algae despite otherwise good husbandry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing water changes and feeding discipline — it manages the symptom, not the cause of a rising nutrient load\u003c\/li\u003e\n\u003cli\u003eInstant results. It works over hours to days as water passes through it, not the moment it's dropped in\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety and handling\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKeep out of reach of children.\u003c\/li\u003e\n\u003cli\u003eHandle the pouch by its mesh casing rather than opening it — the media inside is not meant to be handled loose.\u003c\/li\u003e\n\u003cli\u003eThe pouch will feel warm for a few minutes after rinsing as the media activates. This is expected and not a fault.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/api-phosphate-test-kit-1-25oz-fresh-saltwater\"\u003eAPI Phosphate Test Kit\u003c\/a\u003e — test before you decide the pouch needs replacing rather than swapping on a calendar alone.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/api-ammonia-test-kit-fresh-saltwater\"\u003eAPI Ammonia Test Kit Fresh\/Saltwater\u003c\/a\u003e — worth checking alongside phosphate on any tank that's growing algae or clouding up.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/api-bio-chem-zorb-210l\"\u003eAPI Bio-Chem Zorb\u003c\/a\u003e — for organics and heavy metals, where phosphate and silicate aren't the whole story.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eThis is a consumable, so no manufacturer warranty period applies. That does not affect your rights under the Australian Consumer Law: if the product is faulty, unsafe or not as described, you are entitled to a remedy.\u003c\/p\u003e\n\u003cp\u003eShips as standard freight.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eHow do I know when to replace the pouch?\u003c\/h4\u003e\n\u003cp\u003eTest phosphate and silicate every couple of weeks. Once phosphate reads above 0 ppm or silicate above 0.5 ppm, the pouch is spent, even if that happens before the two-month mark.\u003c\/p\u003e\n\u003ch4\u003eWill it affect my fish or corals directly?\u003c\/h4\u003e\n\u003cp\u003eNo. It works by adsorbing dissolved phosphate and silicate from the water column; it does not add anything to the water that affects livestock directly.\u003c\/p\u003e\n\u003ch4\u003eCan I use it in a planted tank?\u003c\/h4\u003e\n\u003cp\u003eYes, but be aware it also removes phosphate that plants use as a nutrient. In a heavily planted, low-algae tank, running it continuously can starve plants as well as algae.\u003c\/p\u003e\n\u003ch4\u003eDoes it work as soon as I drop it in?\u003c\/h4\u003e\n\u003cp\u003eNo. It needs water flowing through it, so results build over hours to days rather than appearing immediately after rinsing and installing it.\u003c\/p\u003e\n\u003ch4\u003eWhy does the pouch feel warm after rinsing?\u003c\/h4\u003e\n\u003cp\u003eThat's the media activating on contact with water, per API's instructions. It's a normal, temporary reaction and not a sign the pouch is faulty.\u003c\/p\u003e","brand":"API","offers":[{"title":"Default Title","offer_id":55242274472227,"sku":"AA2553","price":31.45,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/api-phos-zorb-treats-210l-43875855991075.webp?v=1790239780"},{"product_id":"fluval-poly-carbon-cartridge-2-pack","title":"Fluval Poly\/Carbon Cartridge (2 pack)","description":"\u003cp\u003e\u003cstrong\u003eGenuine Fluval poly\/carbon cartridges for the U2 or U3 underwater filter, combining mechanical and chemical filtration in one cartridge.\u003c\/strong\u003e Each pack holds two cartridges — one poly-floss face to trap fine debris, one activated-carbon face to pull colour and odour out of the water — sized to drop straight into the U2 or U3 media basket.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-stage cartridge\u003c\/strong\u003e — polyester floss for mechanical filtration, activated carbon for chemical filtration, in one drop-in piece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Fluval fit\u003c\/strong\u003e — sized specifically for the U2 (part A490) or U3 (part A491) media basket, sold as separate variants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 cartridges per pack\u003c\/strong\u003e — enough for two monthly changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo rinsing or soaking\u003c\/strong\u003e — drops straight in and is discarded when spent.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eVariant\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eU2\u003c\/td\u003e\n\u003ctd\u003eFluval U2 Underwater Filter\u003c\/td\u003e\n\u003ctd\u003eA490\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eU3\u003c\/td\u003e\n\u003ctd\u003eFluval U3 Underwater Filter\u003c\/td\u003e\n\u003ctd\u003eA491\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eThe U2 and U3 cartridges are sized differently and are not interchangeable — order the variant that matches your filter model, printed on the filter body.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e2 cartridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003ePoly floss (mechanical) + activated carbon (chemical), combined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReplacement interval\u003c\/th\u003e\n\u003ctd\u003eMonthly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eFluval's own filter manual specifies replacing the poly\/carbon cartridge monthly on U2, U3 and U4 filters. Carbon only removes colour and odour for a few weeks before it exhausts and starts releasing what it's trapped back into the water, so leaving a cartridge in past that point does more harm than good.\u003c\/p\u003e\u003ch3\u003eSuitable for and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for routine monthly media changes on a U2 or U3 filter. Not suitable if you're dosing medication in the same tank — activated carbon will strip most medications out of the water, so remove the cartridge before treating and replace it once the course is finished.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Fluval's standard replacement-parts warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Standard freight.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow often should I change this cartridge?\u003c\/h4\u003e\u003cp\u003eMonthly, per Fluval's own maintenance guidance for the U2\/U3\/U4 range.\u003c\/p\u003e\u003ch4\u003eIs the U2 cartridge the same as the U3 cartridge?\u003c\/h4\u003e\u003cp\u003eNo — they're sized for each filter's media basket and sold as separate variants (A490 for U2, A491 for U3).\u003c\/p\u003e\u003ch4\u003eShould I remove it while treating with medication?\u003c\/h4\u003e\u003cp\u003eYes — activated carbon will absorb most medications, reducing their effectiveness.\u003c\/p\u003e\u003ch4\u003eDo I need to rinse it before use?\u003c\/h4\u003e\u003cp\u003eNo — it's ready to drop straight into the media basket.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"U2","offer_id":55242291249443,"sku":"BA3802","price":9.95,"currency_code":"AUD","in_stock":true},{"title":"U3","offer_id":55335441105187,"sku":"BA3807","price":10.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-poly-carbon-cartridge-43180003688739.webp?v=1790237816"},{"product_id":"fluval-u4-poly-carbon-cartridge-2","title":"Fluval U4 - Poly\/Carbon Cartridge (2)","description":"\u003cp\u003e\u003cstrong\u003eFresh poly and carbon media for a Fluval U4 that's started running cloudy or smelling musty.\u003c\/strong\u003e This two-pack of poly\/carbon cartridges is the chemical and secondary mechanical stage for the Fluval U4 internal filter — polyester floss to catch the fine particles the foam misses, wrapped around activated carbon to pull colour, odour and dissolved organics out of the water.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Fluval U4 cartridge\u003c\/strong\u003e — direct fit, no trimming or repacking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoly floss layer\u003c\/strong\u003e — mechanical polish for water clarity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActivated carbon core\u003c\/strong\u003e — removes discolouration, odour and dissolved organics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo cartridges per pack\u003c\/strong\u003e — one full media change for the U4's cartridge stage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eFluval U4 internal filter only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBA3812\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003ePoly floss + activated carbon cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e2 cartridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003cp\u003eThese cartridges are sized for the \u003cstrong\u003eFluval U4\u003c\/strong\u003e (rated to 240 L \/ 65 US Gal, 1,000 L\/h), which ships with two as standard. They are not interchangeable with the smaller U1, U2 or U3 cartridges — check the model moulded into the filter body first.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eActivated carbon has a working life, not an indefinite one — once it's saturated it stops adsorbing and can start releasing what it's captured back into the water. Fluval's general guidance is to replace carbon media roughly monthly for consistent clarity; tanks with heavy bioload or tannin-heavy décor will exhaust it faster. Rinse the poly side in removed tank water between changes if it's still catching debris.\u003c\/p\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cp\u003eFreshwater and marine aquariums running a Fluval U4. Not a biological media — leave the U4's BIOMAX rings in place when you change this cartridge, since that's where the bacteria colony actually lives.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eGenuine Fluval part, covered against manufacturing defects, in addition to your rights under the Australian Consumer Law, which cannot be excluded. Ships as a standard parcel.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eDoes this replace all the media in my U4?\u003c\/h4\u003e\u003cp\u003eNo — the U4 also runs foam pads and BIOMAX biological rings, sold separately. This cartridge covers the poly\/carbon stage only.\u003c\/p\u003e\u003ch4\u003eHow often should I change it?\u003c\/h4\u003e\u003cp\u003eAround monthly for most tanks, sooner if the water is heavily stocked or discoloured by driftwood or tannins.\u003c\/p\u003e\u003ch4\u003eWill running carbon remove my medication?\u003c\/h4\u003e\u003cp\u003eYes. Remove carbon media, including this cartridge, before dosing any fish medication, and don't replace it until the course is finished.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55242291314979,"sku":"BA3812","price":11.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-u4-poly-carbon-cartri-43180004868387.webp?v=1790234313"},{"product_id":"api-activated-carbon","title":"API Activated Carbon","description":"\u003cp\u003e\u003cstrong\u003eLoose activated carbon that clears colour, odour and waste from aquarium water.\u003c\/strong\u003e API Activated Filter Carbon is a blend of highly activated carbon for freshwater and saltwater aquariums. It is chemical filtration (media that pulls dissolved substances out of the water, rather than trapping floating particles), supplied loose in a carton so you fill your own filter cartridge or media bag.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves waste, colours, odours and medications\u003c\/strong\u003e, the list API gives for this carbon, to improve water clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks in all filter cartridges\u003c\/strong\u003e, as stated by API, as long as water flows through the carbon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and saltwater\u003c\/strong\u003e, for a new setup or an established tank.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: loose activated carbon, chemical filter media\u003c\/li\u003e\n\u003cli\u003eUse rate: half a cup for every 10 US gallons (about 38 L) of aquarium water\u003c\/li\u003e\n\u003cli\u003eWater type: freshwater and saltwater\u003c\/li\u003e\n\u003cli\u003eSizes: 156 g, 312 g and 624 g cartons\u003c\/li\u003e\n\u003cli\u003eMedia bag: not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for freshwater and marine aquariums with discoloured water or a lingering smell, and for clearing leftover medication out of a tank once a treatment course has finished. API does not claim this carbon removes ammonia, nitrite or nitrate, so it is not the product for those problems. API Ammo-Carb, which mixes this carbon with an ammonia remover, is the one to look at for ammonia in a freshwater tank.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eTake the carbon out before you dose a medication, because it removes medications and will strip the treatment from the water. Put it where water is pushed through it rather than around it. Replace it when discolouration or odour comes back, or as directed on the carton.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eAPI does not publish a warranty for this consumable. Any help we give with a faulty pack is in addition to your rights under Australian Consumer Law. Ships by standard parcel post.\u003c\/p\u003e","brand":"API","offers":[{"title":"312 g","offer_id":55244123373859,"sku":"AA0426","price":24.95,"currency_code":"AUD","in_stock":false},{"title":"624 g","offer_id":55244123406627,"sku":"AA0425","price":43.95,"currency_code":"AUD","in_stock":false},{"title":"156 g","offer_id":55335273595171,"sku":"AA0424","price":11.66,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/api-activated-carbon-43204071391523.webp?v=1790237813"},{"product_id":"seachem-matrix","title":"Seachem Matrix","description":"\u003cp\u003e\u003cstrong\u003ePorous biological filter media for freshwater and marine aquariums.\u003c\/strong\u003e Seachem Matrix is a porous inorganic solid, about 10 mm per piece, that gives beneficial bacteria (the bacteria that break down fish waste) a large surface to live on. Seachem rates it at more than about 700 square metres of surface per litre, and its pore structure supports both aerobic bacteria (which need oxygen) and anaerobic bacteria (which live in low oxygen areas deep in the pores).\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmmonia, nitrite and nitrate removal\u003c\/strong\u003e in the same filter. Seachem notes nitrate only falls where the filter removes it faster than the tank produces it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge surface area:\u003c\/strong\u003e Seachem states each litre gives as much surface as 170 litres of plastic bio balls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInert:\u003c\/strong\u003e it will not break down and will not change your pH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not need replacing\u003c\/strong\u003e, and can be rinsed when needed without damaging the filter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Seachem\u003c\/li\u003e\n\u003cli\u003eType: biological filter media\u003c\/li\u003e\n\u003cli\u003ePiece size: about 10 mm\u003c\/li\u003e\n\u003cli\u003eSurface area: more than about 700 square metres per litre\u003c\/li\u003e\n\u003cli\u003eDose: 250 mL for every 200 litres of water\u003c\/li\u003e\n\u003cli\u003eSizes on our store: 250 mL, 500 mL, 1 L, 2 L, 4 L and 20 L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for freshwater, marine and planted aquariums, in any type of filter. Seachem says it is particularly effective in a canister filter. It is biological media, not a mechanical filter, so place sponge or floss before it to catch debris.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eSet up your filter in this order: mechanical media first, then chemical media, then Matrix. Rinse it when needed.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eYour rights under Australian Consumer Law apply. Ships by standard parcel post.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"250 mL","offer_id":55244154765603,"sku":null,"price":15.95,"currency_code":"AUD","in_stock":true},{"title":"500 mL","offer_id":55244154798371,"sku":null,"price":27.95,"currency_code":"AUD","in_stock":false},{"title":"1 L","offer_id":55244154831139,"sku":null,"price":50.95,"currency_code":"AUD","in_stock":false},{"title":"2 L","offer_id":55244154863907,"sku":null,"price":89.95,"currency_code":"AUD","in_stock":false},{"title":"4 L","offer_id":55244154896675,"sku":null,"price":146.95,"currency_code":"AUD","in_stock":false},{"title":"20 L","offer_id":55244154929443,"sku":null,"price":399.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-matrix-43160359698723.webp?v=1790238166"},{"product_id":"seachem-purigen","title":"Seachem Purigen","description":"\u003cp\u003e\u003cstrong\u003eA resin that polishes water clear by capturing organics before they become nitrate.\u003c\/strong\u003e Seachem Purigen is a synthetic adsorbent, not a carbon — it removes dissolved and colloidal organics directly, rather than waiting for them to break down into ammonia and nitrate first. Run it in a media bag or reactor and it noticeably improves clarity within a day. It's regenerable with a bleach soak, so the same batch can be reused rather than thrown away when it's exhausted.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves organics at the source\u003c\/strong\u003e — captures dissolved and colloidal waste before it's broken down into ammonia, nitrite and nitrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisibly polishes water\u003c\/strong\u003e — noticeably clearer water within 24 hours of use in most tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegenerable\u003c\/strong\u003e — a 1:1 household bleach and water soak restores it to original colour and activity, so one batch can be reused repeatedly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour-change exhaustion indicator\u003c\/strong\u003e — beads darken from their original colour to brown or black as they exhaust.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFresh and marine safe.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSeachem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003eSynthetic adsorbent resin (organic scavenger, not activated carbon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDosage\u003c\/th\u003e\n\u003ctd\u003e1 mL Purigen per 4 L of aquarium water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRegenerable\u003c\/th\u003e\n\u003ctd\u003eYes — 1:1 household bleach:water soak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRinse before use\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended bag\u003c\/th\u003e\n\u003ctd\u003eFine mesh, 180 micron or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizes available\u003c\/th\u003e\n\u003ctd\u003e100 mL, 250 mL, 500 mL, 1 L, 2 L, 4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\u003cp\u003ePurigen's dosage scales with tank volume, at 1 mL per 4 L. The 250 mL size is the sweet spot per litre of water treated — it works out cheaper than both the 100 mL bottle below it and the 4 L above it, so buying bigger isn't automatically better value with Purigen the way it is with Prime or Pristine.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eWater volume serviced\u003c\/th\u003e\n\u003cth\u003eCost per litre serviced\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 mL\u003c\/td\u003e\n\u003ctd\u003e400 L\u003c\/td\u003e\n\u003ctd\u003e9c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mL\u003c\/td\u003e\n\u003ctd\u003e1,000 L\u003c\/td\u003e\n\u003ctd\u003e5c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003e2,000 L\u003c\/td\u003e\n\u003ctd\u003e5c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 L\u003c\/td\u003e\n\u003ctd\u003e4,000 L\u003c\/td\u003e\n\u003ctd\u003e5c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 L\u003c\/td\u003e\n\u003ctd\u003e8,000 L\u003c\/td\u003e\n\u003ctd\u003e4c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 L\u003c\/td\u003e\n\u003ctd\u003e16,000 L\u003c\/td\u003e\n\u003ctd\u003e4c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eThese figures are the cost to service that volume once, before regeneration. Because Purigen can be regenerated with bleach and reused rather than replaced, the real cost per litre over the media's working life is considerably lower than the table above.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRinse before first use.\u003c\/li\u003e\n\u003cli\u003eRun in a fine mesh bag (180 micron or less) inside a filter, reactor or sump — not loose in a filter basket.\u003c\/li\u003e\n\u003cli\u003eWatch for the colour change from its original colour to brown or black as the sign it needs regenerating or replacing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTo regenerate:\u003c\/strong\u003e soak 24 hours in a 1:1 solution of regular unscented household bleach and water, in a non-metallic container, in a well-ventilated area away from children. Rinse well, then soak 8 hours in a dechlorinator solution (4 tablespoons of Seachem Prime, or equivalent, per cup of water) and rinse well again. For freshwater tanks, an optional 4-hour soak in a buffer solution follows. Do not reuse if any bleach or chlorine odour remains — test for residual chlorine if unsure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e freshwater and marine aquariums wanting clearer water and lower organic load, run alongside normal biological and mechanical filtration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e biological filtration on its own — Purigen removes organics, it doesn't replace a biofilter or nitrifying bacteria.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by your rights under Australian Consumer Law in addition to any manufacturer terms. Standard parcel freight.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eIs Purigen the same as activated carbon?\u003c\/h4\u003e\u003cp\u003eNo — it's a synthetic adsorbent resin that targets dissolved and colloidal organics directly, rather than carbon's broader adsorption. Many aquarists run both, in separate bags.\u003c\/p\u003e\u003ch4\u003eHow do I know when Purigen needs regenerating?\u003c\/h4\u003e\u003cp\u003eWatch the beads: they darken from their original colour to brown or black as they exhaust.\u003c\/p\u003e\u003ch4\u003eCan I regenerate Purigen more than once?\u003c\/h4\u003e\u003cp\u003eSeachem doesn't publish a maximum number of regeneration cycles — aquarists commonly regenerate the same batch multiple times before replacing it.\u003c\/p\u003e\u003ch4\u003eDo I need a reactor to run Purigen?\u003c\/h4\u003e\u003cp\u003eNo — a fine mesh media bag in a canister filter, hang-on-back or sump works, though a reactor gives more even water contact.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":55244155224355,"sku":null,"price":37.95,"currency_code":"AUD","in_stock":false},{"title":"250 mL","offer_id":55244155257123,"sku":null,"price":54.95,"currency_code":"AUD","in_stock":true},{"title":"500 mL","offer_id":55244155289891,"sku":null,"price":112.95,"currency_code":"AUD","in_stock":true},{"title":"1 L","offer_id":55244155322659,"sku":null,"price":225.95,"currency_code":"AUD","in_stock":false},{"title":"2 L","offer_id":55244155355427,"sku":null,"price":338.95,"currency_code":"AUD","in_stock":false},{"title":"4 L","offer_id":55244155388195,"sku":null,"price":736.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-purigen-43160359797027.webp?v=1790238167"},{"product_id":"seachem-phosnet","title":"Seachem PhosNet","description":"\u003cp\u003e\u003cstrong\u003eThe highest-capacity phosphate remover in Seachem's range, made synthetically for less dust.\u003c\/strong\u003e Seachem PhosNet is a synthetic granular ferric oxide (GFO) that binds 1.41 mg of phosphate per gram of media — ahead of Seachem's own PhosGuard (0.87 mg\/g) and PhosBond (1.19 mg\/g) — with a similar pull on silicate.\u003c\/p\u003e\n\u003cp\u003eBeing synthetic rather than mined, PhosNet runs cleaner in a reactor than natural GFO: less dust means less fine media escaping into the display, and more consistent performance from batch to batch. It suits reef tanks and freshwater systems chasing low phosphate for coral colour or algae control.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.41 mg phosphate per gram\u003c\/strong\u003e — the highest binding capacity of Seachem's three phosphate media, so less product is needed for the same nutrient load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSynthetic GFO, low dust\u003c\/strong\u003e — cleaner to handle and rinse than natural granular ferric oxide, and less prone to clouding the tank on startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves phosphate and silicate together\u003c\/strong\u003e — one media for both of the nutrients that feed nuisance algae and diatoms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and marine safe\u003c\/strong\u003e, at different dose rates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003ctd\u003eSynthetic granular ferric oxide (GFO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBinding capacity\u003c\/th\u003e\n\u003ctd\u003e1.41 mg phosphate per gram of media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDose rate\u003c\/th\u003e\n\u003ctd\u003e50 g per 200 L saltwater, or 50 g per 400 L freshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eCanister filter, media chamber, or high-flow trickle filter area — filter bag recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eTreats (saltwater)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 g\u003c\/td\u003e\n\u003ctd\u003e200 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125 g\u003c\/td\u003e\n\u003ctd\u003e500 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 g\u003c\/td\u003e\n\u003ctd\u003e1,000 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003e2,000 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFreshwater volumes treated are roughly double the saltwater figures above, since PhosNet is dosed lighter in freshwater. The litres above use the saltwater dose, the more conservative of the two.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e reef and FOWLR marine tanks, planted and community freshwater tanks, and heavier phosphate loads where a higher-capacity media means fewer reactor refills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e as a substitute for regular water changes or nutrient export via protein skimming — it treats the symptom, not the source of high nutrient input.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDirections and care\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRinse before use to settle any fine dust.\u003c\/li\u003e\n\u003cli\u003ePosition to maximise water flow through the media without letting it tumble — a canister filter, dedicated media chamber, or a filter bag in a high-flow trickle area all work.\u003c\/li\u003e\n\u003cli\u003eLeave in place for around 4 days, then test phosphate and silicate. Replace once levels stop dropping toward roughly 0.02 mg\/L; if they're still falling, leave it running.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eNo specific handling warnings beyond standard practice for filter media: rinse before use and avoid dosing into a bare-bottom tank where dust could settle on livestock.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA phosphate and silicate test kit\u003c\/strong\u003e — to confirm exhaustion rather than replacing on a guess.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA media reactor\u003c\/strong\u003e — GFO performs best under even, tumble-free flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeachem PhosGuard\u003c\/strong\u003e — the lower-capacity, lower-cost-per-pack alumina alternative where a smaller phosphate load doesn't need PhosNet's extra binding capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Seachem's standard quality guarantee in addition to your rights under Australian Consumer Law. Standard shipping applies to all pack sizes.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat's the difference between PhosNet and PhosGuard?\u003c\/h4\u003e\n\u003cp\u003eBoth remove phosphate and silicate, but PhosNet is a synthetic GFO with a higher binding capacity (1.41 mg\/g against PhosGuard's 0.87 mg\/g), so it clears a heavier phosphate load from a smaller volume of media.\u003c\/p\u003e\n\u003ch4\u003eDo I need a reactor for PhosNet?\u003c\/h4\u003e\n\u003cp\u003eA reactor gives the most even flow, but a filter bag in a high-flow trickle area or canister chamber also works.\u003c\/p\u003e\n\u003ch4\u003eHow do I know when to replace it?\u003c\/h4\u003e\n\u003cp\u003eTest phosphate and silicate from around day 4 onward. Once readings stop dropping toward about 0.02 mg\/L, the media is exhausted.\u003c\/p\u003e\n\u003ch4\u003eIs PhosNet safe for a reef tank?\u003c\/h4\u003e\n\u003cp\u003eYes, it's designed for fresh and marine use, including reef systems chasing low phosphate for coral colour.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"50 g","offer_id":55244168626467,"sku":null,"price":42.95,"currency_code":"AUD","in_stock":false},{"title":"125 g","offer_id":55244168659235,"sku":null,"price":54.95,"currency_code":"AUD","in_stock":false},{"title":"250 g","offer_id":55244168692003,"sku":null,"price":119.95,"currency_code":"AUD","in_stock":false},{"title":"500 g","offer_id":55244168724771,"sku":null,"price":228.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-phosnet-43160359862563.webp?v=1790238166"},{"product_id":"seachem-phosbond","title":"Seachem PhosBond","description":"\u003cp\u003e\u003cstrong\u003eStrips phosphate and silicate out of the water column to starve nuisance algae at the source.\u003c\/strong\u003e Seachem PhosBond combines granular ferric oxide with aluminium oxide in one media, removing both phosphate and silicate together rather than needing two separate products. It works in fresh and saltwater, is reusable until exhausted, and never leaches what it's captured back into the tank.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves phosphate and silicate together\u003c\/strong\u003e — one media instead of running two separate chemical filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater safe\u003c\/strong\u003e — the same media, different dose rates for each.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable\u003c\/strong\u003e — can be removed, dried and returned to service until it's exhausted; it doesn't leach phosphate or silicate back out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWon't crash your levels overnight\u003c\/strong\u003e — dosed correctly, it draws phosphate down gradually rather than shocking sensitive invertebrates.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSeachem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003ePhosBond\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition\u003c\/th\u003e\n\u003ctd\u003eFerric oxide coated aluminium oxide (GFO + aluminium oxide blend)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRemoves\u003c\/th\u003e\n\u003ctd\u003ePhosphate and silicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSaltwater dose\u003c\/th\u003e\n\u003ctd\u003e60 mL per 200 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFreshwater dose\u003c\/th\u003e\n\u003ctd\u003e60 mL per 400 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse in\u003c\/th\u003e\n\u003ctd\u003eReactor, canister filter, media chamber, box filter or high-flow area of a trickle filter, ideally in a media bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReusable\u003c\/th\u003e\n\u003ctd\u003eYes — dry and return to service until exhausted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack sizes\u003c\/th\u003e\n\u003ctd\u003e100 mL, 250 mL, 500 mL, 1 L, 4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\u003cp\u003eThe dose is the same ratio at every size — 60 mL per 200 L of saltwater, or 60 mL per 400 L of freshwater. Buy based on the size of your system and how often you plan to refresh the media, not just the sticker price of the bottle.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eTreats (saltwater)\u003c\/th\u003e\n\u003cth\u003eTreats (freshwater)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 mL\u003c\/td\u003e\n\u003ctd\u003e~333 L\u003c\/td\u003e\n\u003ctd\u003e~667 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mL\u003c\/td\u003e\n\u003ctd\u003e~833 L\u003c\/td\u003e\n\u003ctd\u003e~1,667 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003e~1,667 L\u003c\/td\u003e\n\u003ctd\u003e~3,333 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 L\u003c\/td\u003e\n\u003ctd\u003e~3,333 L\u003c\/td\u003e\n\u003ctd\u003e~6,667 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 L\u003c\/td\u003e\n\u003ctd\u003e~13,333 L\u003c\/td\u003e\n\u003ctd\u003e~26,667 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eFigures are based on Seachem's published dose rate.\u003c\/p\u003e\u003ch3\u003eSetup and use\u003c\/h3\u003e\u003cp\u003eRinse the media before use, then run it in a media bag inside a canister filter, media chamber, box filter, or the high-flow section of a trickle filter or reactor — anywhere water passes through it without the granules tumbling against each other. Test phosphate after 4 days; if it hasn't dropped to around 0.02 mg\/L, leave the media in place and test again in a few more days. Once levels are low, PhosBond can stay in place until they start climbing again — there's no need to run it constantly once your system is stable.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e reef tanks and FOWLR systems fighting nuisance algae, freshwater planted or community tanks with excess phosphate, anyone wanting to remove silicate alongside phosphate in one pass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e dosing all at once at a rate beyond the label — overdosing pulls phosphate down too fast and can stress sensitive invertebrates. Follow the stated dose rather than adding extra for a faster result.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003ePhosBond can be removed, rinsed and dried between uses and returned to service until it's fully exhausted — it doesn't release what it's captured back into the water. Replace it once it stops bringing phosphate back down after a few days in place.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Seachem's standard quality guarantee at the time of sale, in addition to your rights under Australian Consumer Law. Ships as a standard parcel at every pack size.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I use PhosBond in a freshwater tank?\u003c\/h4\u003e\u003cp\u003eYes. Use half the saltwater dose — 60 mL per 400 L of freshwater rather than 60 mL per 200 L of saltwater.\u003c\/p\u003e\u003ch4\u003eWill it hurt my invertebrates?\u003c\/h4\u003e\u003cp\u003eDosed correctly, no. Overdosing is the risk — it can pull phosphate down too quickly and stress sensitive invertebrates, so stick to the stated rate rather than adding extra.\u003c\/p\u003e\u003ch4\u003eDo I need a reactor, or can I use a media bag?\u003c\/h4\u003e\u003cp\u003eA media bag in a canister filter, media chamber, box filter or high-flow area works well — a reactor isn't required, though it can improve contact time on larger systems.\u003c\/p\u003e\u003ch4\u003eHow do I know when to replace it?\u003c\/h4\u003e\u003cp\u003eTest your phosphate around 4 days after installing fresh media. Once it stops bringing levels back down to roughly 0.02 mg\/L, it's time to replace it.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":55244173508899,"sku":null,"price":34.95,"currency_code":"AUD","in_stock":false},{"title":"250 mL","offer_id":55244173541667,"sku":null,"price":43.95,"currency_code":"AUD","in_stock":false},{"title":"500 mL","offer_id":55244173574435,"sku":null,"price":77.95,"currency_code":"AUD","in_stock":false},{"title":"1 L","offer_id":55244173607203,"sku":null,"price":133.95,"currency_code":"AUD","in_stock":false},{"title":"4 L","offer_id":55244173639971,"sku":null,"price":358.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-phosbond-43160365302051.webp?v=1790238166"},{"product_id":"seachem-matrixcarbon","title":"Seachem MatrixCarbon","description":"\u003cp\u003e\u003cstrong\u003eSpherical activated carbon that keeps flowing instead of clogging.\u003c\/strong\u003e Seachem MatrixCarbon is a premium bead-shaped activated carbon for fresh and saltwater aquariums, sized from 100 mL spare-parts-drawer bottles up to 4 L for large systems. Seachem's own dosing guide states 250 mL treats roughly 400 L of aquarium water for several months, so every pack size scales in a straight line from a nano tank to a fish room.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpherical bead shape\u003c\/strong\u003e — resists compacting and channelling the way granular carbon can, so water keeps moving through the whole bed rather than finding one easy path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow ash content\u003c\/strong\u003e — Seachem states this minimises the carbon's own impact on pH, unlike cheaper carbons that can leach alkalinity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves organics, colour and odour\u003c\/strong\u003e — clears tannin tint, general odour and dissolved organics from the water column.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater safe\u003c\/strong\u003e — one product across the whole store, no separate marine version.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreats water from 5c per litre\u003c\/strong\u003e on the largest pack — see Specifications below for every size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003cth\u003eTreats (approx.)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 mL\u003c\/td\u003e\n\u003ctd\u003e000116010504\u003c\/td\u003e\n\u003ctd\u003e160 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mL\u003c\/td\u003e\n\u003ctd\u003e000116010603\u003c\/td\u003e\n\u003ctd\u003e400 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003e000116010306\u003c\/td\u003e\n\u003ctd\u003e800 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 L\u003c\/td\u003e\n\u003ctd\u003e000116010702\u003c\/td\u003e\n\u003ctd\u003e1,600 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 L\u003c\/td\u003e\n\u003ctd\u003e000116010801\u003c\/td\u003e\n\u003ctd\u003e3,200 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 L\u003c\/td\u003e\n\u003ctd\u003e000116010900\u003c\/td\u003e\n\u003ctd\u003e6,400 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eLitres treated is calculated from Seachem's published dosing guide (250 mL treats 400 L for several months). It describes how much water the carbon is dosed against, not a guaranteed lifespan — actual replacement timing depends on bioload and flow, and Seachem does not publish a fixed number of months.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\n\u003cp\u003eMatch the pack to the water you're running carbon on, not the whole tank volume, if you only run it periodically. A nano tank or a quarantine setup rarely needs more than the 100 mL bottle; a single medium canister filter is usually well served by 250 mL or 500 mL; multi-tank fish rooms and large systems are where the 2 L and 4 L packs earn their lower per-litre cost.\u003c\/p\u003e\n\u003ch3\u003eSetup and use\u003c\/h3\u003e\n\u003cp\u003eRinse the carbon before use to remove any dust from shipping, then place it where flow through the media is highest — a canister filter media basket, a dedicated reactor, a chemical filtration module, or a mesh bag in a box filter, sump or the high-flow section of a trickle filter.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e fresh and saltwater tanks that need water polished — clearing tint, odour and dissolved organics — in canister filters, reactors, sumps and box filters with reasonable flow through the media.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e replacing biological or mechanical filtration — MatrixCarbon is a chemical filtration stage only, and won't process ammonia, nitrite or nitrate, or remove suspended particles. It will also adsorb some medications from the water column, so remove it before dosing a treatment course and don't run it again until the course is finished.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eThere's no fixed replacement calendar — Seachem's guidance is to watch for the signs the carbon is exhausted rather than count weeks. Replace when water discolouration, odour or general organic load starts to return, which is typically after several months of continuous use, sooner in heavily stocked or heavily fed systems.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachem-tidal-35-hangon-filter-135l\"\u003eSeachem Tidal hang-on filters\u003c\/a\u003e — MatrixCarbon fits neatly into the media basket of the Tidal 35 through 110 range for on-the-fly chemical filtration.\u003c\/li\u003e\n\u003cli\u003eA mechanical filter pad or floss ahead of the carbon, so debris doesn't foul the media before its chemical capacity is used up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eShips as a standard parcel with no special handling required. Covered by the consumer guarantees under Australian Consumer Law in addition to Seachem's own product guarantee.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eHow long does a pack of MatrixCarbon actually last?\u003c\/h4\u003e\n\u003cp\u003eSeachem doesn't publish a fixed number of months — treat the \"400 L per 250 mL\" figure as a dosing guide, not a countdown, and replace when clarity, odour control or colour removal starts to fall away.\u003c\/p\u003e\n\u003ch4\u003eCan I use MatrixCarbon in a marine or reef tank?\u003c\/h4\u003e\n\u003cp\u003eYes — Seachem states it's safe for both fresh and saltwater, including reef systems.\u003c\/p\u003e\n\u003ch4\u003eDoes running carbon strip trace elements or medication from my tank?\u003c\/h4\u003e\n\u003cp\u003eIt can adsorb some medications and organics from the water, which is exactly what it's designed to do for waste products. Remove it before starting a medication course and hold off running it again until the course is complete.\u003c\/p\u003e\n\u003ch4\u003eWhich pack size is the best value?\u003c\/h4\u003e\n\u003cp\u003eThe largest packs are the cheapest per litre treated — the 2 L and 4 L bottles both work out to around 5c per litre, against 13c per litre for the 100 mL bottle. Buy the size that matches how much carbon media you actually run, though, rather than the cheapest per-litre figure alone, since unused carbon doesn't keep working once it's exhausted.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":55244174590243,"sku":null,"price":21.95,"currency_code":"AUD","in_stock":false},{"title":"250 mL","offer_id":55244174623011,"sku":null,"price":29.95,"currency_code":"AUD","in_stock":true},{"title":"500 mL","offer_id":55244174655779,"sku":null,"price":49.95,"currency_code":"AUD","in_stock":true},{"title":"1 L","offer_id":55244174688547,"sku":null,"price":85.95,"currency_code":"AUD","in_stock":true},{"title":"2 L","offer_id":55244174721315,"sku":null,"price":171.95,"currency_code":"AUD","in_stock":false},{"title":"4 L","offer_id":55244174754083,"sku":null,"price":322.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-matrixcarbon-43160365728035.webp?v=1790238166"},{"product_id":"seachem-phosguard","title":"Seachem PhosGuard","description":"\u003cp\u003e\u003cstrong\u003eStrips phosphate and silicate before they feed algae, in fresh or marine water.\u003c\/strong\u003e Seachem PhosGuard is a spherical, high-porosity aluminium oxide (alumina) media that binds phosphate and silicate on contact, run loose in a reactor or filter bag anywhere flow passes through it.\u003c\/p\u003e\n\u003cp\u003ePhosGuard suits reef tanks chasing lower nutrients for coral colour, planted and community freshwater tanks fighting nuisance algae, and any tank on tap water carrying silicate or phosphate. It is not recommended for freshwater aquariums buffered with a phosphate-based pH buffer, since the media will strip the buffer along with the nuisance nutrient.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBead-shaped alumina media\u003c\/strong\u003e — spherical form keeps flow even through a reactor or media bag, instead of channelling around a clump of dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinds phosphate and silicate together\u003c\/strong\u003e — one media handles both of the nutrients that drive nuisance algae and diatoms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.87 mg phosphate per gram\u003c\/strong\u003e — the working capacity Seachem publishes for PhosGuard's alumina base.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and marine safe\u003c\/strong\u003e — the same media works across both water types, at different dose rates (see Directions).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous or intermittent use\u003c\/strong\u003e — leave it running, or dose it in bursts ahead of a livestock introduction or a coral colouring push.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003ctd\u003eAluminium oxide (alumina), spherical beads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBinding capacity\u003c\/th\u003e\n\u003ctd\u003e0.87 mg phosphate per gram of media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDose rate\u003c\/th\u003e\n\u003ctd\u003e85 mL per 200 L saltwater, or 85 mL per 400 L freshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and saltwater (not phosphate-buffered freshwater)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eReactor, canister filter, or media bag in a high-flow area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich size do I need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eTreats (saltwater)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 mL\u003c\/td\u003e\n\u003ctd\u003e≈235 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mL\u003c\/td\u003e\n\u003ctd\u003e≈588 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003e≈1,176 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 L\u003c\/td\u003e\n\u003ctd\u003e≈2,353 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 L\u003c\/td\u003e\n\u003ctd\u003e≈4,706 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 L\u003c\/td\u003e\n\u003ctd\u003e≈9,412 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFreshwater volumes treated are roughly double the saltwater figures above, since PhosGuard is dosed lighter in freshwater. The litres above use the saltwater dose, the more conservative of the two.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e reef and FOWLR marine tanks, planted and community freshwater tanks, and any system where tap water or feeding is pushing phosphate or silicate up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e freshwater aquariums dosed with a phosphate-based pH buffer — PhosGuard will strip the buffer itself, not just the excess nutrient. Not a substitute for regular water changes or export via protein skimming.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDirections and care\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePre-wet by adding the media to roughly double its volume of fresh water and rinsing before use — it can generate a little heat on first contact with water, which is normal.\u003c\/li\u003e\n\u003cli\u003ePosition it in flow without letting it tumble: a reactor, canister filter media basket, or a filter bag in a high-flow trickle area all work. Tumbling grinds the beads and shortens their working life.\u003c\/li\u003e\n\u003cli\u003eLeave in place for around 4 days, then test phosphate and silicate. If levels haven't dropped to roughly 0.02 mg\/L, the media is exhausted and it's time to replace it; if levels are still falling, leave it running.\u003c\/li\u003e\n\u003cli\u003eCan be run continuously or in short bursts, depending on how hard you're chasing a number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003ePhosGuard can generate mild heat on first contact with water during pre-wetting — this is expected, not a fault. It is not a medication and carries no livestock warnings beyond the phosphate-buffer note above.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA phosphate and silicate test kit\u003c\/strong\u003e — to know when the media is exhausted rather than guessing on a calendar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA media reactor or filter bag\u003c\/strong\u003e — for the even flow the beads need to work without tumbling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeachem PhosNet\u003c\/strong\u003e — a higher-capacity synthetic GFO alternative where a smaller footprint or heavier phosphate load is the priority.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Seachem's standard quality guarantee in addition to your rights under Australian Consumer Law. Standard shipping applies to all pack sizes; no cold chain or dangerous goods handling required.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eHow long does one dose of PhosGuard last?\u003c\/h4\u003e\n\u003cp\u003eThere's no fixed timeframe — it depends on how much phosphate and silicate is entering the tank. Start checking at around 4 days and replace once test readings stop dropping.\u003c\/p\u003e\n\u003ch4\u003eCan I run PhosGuard and carbon in the same reactor?\u003c\/h4\u003e\n\u003cp\u003eYes, though many aquarists run them in separate chambers or bags so each media gets even flow rather than competing for contact time.\u003c\/p\u003e\n\u003ch4\u003eWill PhosGuard affect my freshwater pH buffer?\u003c\/h4\u003e\n\u003cp\u003eIf your buffer is phosphate-based, yes — PhosGuard will strip it along with any excess phosphate. That's why it's not recommended for phosphate-buffered freshwater setups.\u003c\/p\u003e\n\u003ch4\u003eIs PhosGuard reef safe?\u003c\/h4\u003e\n\u003cp\u003eYes, it's widely used in reef tanks specifically to keep phosphate and silicate low for coral colour and to limit nuisance algae.\u003c\/p\u003e\n\u003ch4\u003eDo I need a reactor, or can I just drop it in the filter?\u003c\/h4\u003e\n\u003cp\u003eA reactor or filter bag in a high-flow area both work. What matters is that the media sits in flow without tumbling — loose in an open sump is the one placement to avoid.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":55244184715555,"sku":null,"price":21.95,"currency_code":"AUD","in_stock":false},{"title":"250 mL","offer_id":55244184748323,"sku":null,"price":26.95,"currency_code":"AUD","in_stock":false},{"title":"500 mL","offer_id":55244184781091,"sku":null,"price":45.95,"currency_code":"AUD","in_stock":false},{"title":"1 L","offer_id":55244184813859,"sku":null,"price":75.95,"currency_code":"AUD","in_stock":false},{"title":"2 L","offer_id":55244184846627,"sku":null,"price":133.95,"currency_code":"AUD","in_stock":false},{"title":"4 L","offer_id":55244184879395,"sku":null,"price":235.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/seachem-phosguard-43160366350627.webp?v=1790238166"},{"product_id":"bioscape-premium-carbon-pouches","title":"Bioscape Premium Carbon Pouches","description":"\u003cp\u003e\u003cstrong\u003eDrop-in carbon pouches that pull odour, tannins and discolouration out of the water column.\u003c\/strong\u003e Bioscape Premium Carbon Pouches are pre-bagged nets of activated carbon that sit directly in a filter's flow, chemically stripping the compounds a mechanical pad and a biological media stage can't touch — tannins, medication residue, food dyes and the yellow tint that builds up between water changes. They're sold in 500 g, 750 g and 1000 g packs, each supplied as multiple 250 g nets.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActivated carbon core\u003c\/strong\u003e — high-surface-area carbon adsorbs dissolved organics, tannins and odour-causing compounds that filter floss and biological media pass straight through.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-bagged, drop-in format\u003c\/strong\u003e — each pouch is a sealed mesh net, so there's no loose carbon to measure or rinse before it goes in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits most filter types\u003c\/strong\u003e — sized to sit in canister filter media baskets, power filter chemical compartments, trickle towers and sumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePacked in 250 g nets\u003c\/strong\u003e — the 500 g pack is two nets; Bioscape doesn't publish the exact net count for the 750 g and 1000 g packs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemically inert carrier\u003c\/strong\u003e — the carbon itself doesn't alter pH or hardness, so it can be added or removed without disturbing water chemistry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003e2 x 250 g pouches\u003c\/td\u003e\n\u003ctd\u003eActivated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e750 g\u003c\/td\u003e\n\u003ctd\u003e250 g pouches (exact net count not published by Bioscape)\u003c\/td\u003e\n\u003ctd\u003eActivated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 g\u003c\/td\u003e\n\u003ctd\u003e250 g pouches (exact net count not published by Bioscape)\u003c\/td\u003e\n\u003ctd\u003eActivated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWill it fit my setup?\u003c\/h3\u003e\n\u003cp\u003eThis is a media choice rather than a size-matched part, so it isn't fitted to one specific canister or hang-on model. Each 250 g pouch is roughly fist-sized. If your filter has a dedicated chemical media stage or basket, that's the spot for it; otherwise sit it in the main flow, downstream of the mechanical media.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for polishing water in freshwater and saltwater systems, clearing tannin staining, and pulling residual medication out of the water once a treatment course has finished. Activated carbon is chemically inert and commonly run in both fresh and marine setups.\u003c\/p\u003e\n\u003cp\u003eNot suitable as the only stage of filtration — it needs mechanical and biological media alongside it — and not suitable to leave in place indefinitely. Once the carbon's surface is saturated it stops adsorbing and can, in theory, start releasing compounds back into the water.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eBioscape doesn't publish a fixed replacement interval for this pack. The sign to watch for is the carbon losing its polishing effect — water that was crystal-clear starts looking dull or faintly tinted again, which means the media is exhausted rather than still working. In a heavily stocked or heavily dosed tank that can happen within weeks; in a lightly stocked tank it will run longer. Replace the whole pouch rather than topping it up.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered against manufacturing and packaging defects under Bioscape's warranty, in addition to your rights under Australian Consumer Law. Ships by standard parcel post.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eCan I rinse and reuse a carbon pouch?\u003c\/h4\u003e\n\u003cp\u003eNo. Once the carbon's surface is saturated with adsorbed compounds it stops working, and rinsing won't reactivate it. Replace the pouch.\u003c\/p\u003e\n\u003ch4\u003eWill it remove medication from my tank?\u003c\/h4\u003e\n\u003cp\u003eYes — activated carbon is the standard way to strip residual medication from the water once a treatment course is finished. Run it after dosing, not during, since it will also pull out the medication you're trying to dose.\u003c\/p\u003e\n\u003ch4\u003eDoes it affect pH or water hardness?\u003c\/h4\u003e\n\u003cp\u003eNo. Activated carbon is chemically inert with respect to pH and hardness — it only adsorbs dissolved organic compounds.\u003c\/p\u003e\n\u003ch4\u003eWhich pack size should I buy?\u003c\/h4\u003e\n\u003cp\u003eLarger tanks and sumps push more water through the media basket and get through carbon faster, so the 750 g and 1000 g packs suit bigger systems or anyone who'd rather restock less often. A single 500 g pack is enough for a nano to mid-size tank running one media stage.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"500 g","offer_id":55249199628579,"sku":null,"price":16.95,"currency_code":"AUD","in_stock":true},{"title":"750 g","offer_id":55249199661347,"sku":"BIS148","price":25.95,"currency_code":"AUD","in_stock":true},{"title":"1000 g","offer_id":55249199694115,"sku":"BIS149","price":32.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-premium-carbon-pouc-10269887529251-1-dq.webp?v=1790372666"},{"product_id":"bioscape-zeo-carbon-pouches","title":"Bioscape Zeo\/Carbon Pouches","description":"\u003cp\u003e\u003cstrong\u003eZeolite plus activated carbon in one drop-in pouch, so you don't have to buy or bag them separately.\u003c\/strong\u003e Bioscape Zeo\/Carbon Pouches combine zeolite for ammonia removal with activated carbon for odour, discolouration and organic control, pre-packed into ready-to-use net bags for canister filters, power filters, trickle filters and other chemical filtration systems. They suit both freshwater and marine setups.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZeolite + activated carbon blend\u003c\/strong\u003e — zeolite binds free ammonia, while activated carbon adsorbs organics, odours and the discolouration left behind by tannins or medication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-packed net pouches\u003c\/strong\u003e — drop straight into your filter's media basket or chemical stage, no loose media or extra bagging needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits most filter types\u003c\/strong\u003e — canister filters, hang-on power filters, trickle\/wet-dry filters and dedicated chemical filtration stages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and marine safe\u003c\/strong\u003e — suits community, planted and reef systems alike.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree pack sizes\u003c\/strong\u003e — 500 g, 750 g and 1000 g, each made up of individual 250 g pouches so you can run one or several at a time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003cth\u003ePouches\u003c\/th\u003e\n\u003cth\u003eSKU \/ barcode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003e2 x 250 g\u003c\/td\u003e\n\u003ctd\u003eBarcode 9327975050306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e750 g\u003c\/td\u003e\n\u003ctd\u003e3 x 250 g\u003c\/td\u003e\n\u003ctd\u003eBIS192\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 g\u003c\/td\u003e\n\u003ctd\u003e4 x 250 g\u003c\/td\u003e\n\u003ctd\u003eBIS193\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhich pack size do I need?\u003c\/h3\u003e\u003cp\u003eRun one 250 g pouch per moderately stocked filter as a baseline, and scale up with bioload: two pouches for a busier community tank, three or four where you're running multiple filters or a heavily stocked system. All three packs use the same 250 g pouches — buying the larger pack is simply a cheaper way to keep spares on hand. Bioscape doesn't publish a per-pouch litre rating for this media, so size by fish load and pouch count rather than a fixed tank volume, and confirm with an ammonia test kit.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003ePouches included\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eSmall to medium tanks running a single filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e750 g\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eMedium tanks, or two filters running together\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 g\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eLarger systems, multiple filters, or stocking up on spares\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSit the pouch in your filter's media basket or chemical-media stage, in the flow path.\u003c\/li\u003e\n\u003cli\u003eStart a fresh pouch when you notice odours, tannin staining, or discolouration left over from medication.\u003c\/li\u003e\n\u003cli\u003eAfter cycling, if ammonia readings creep up between water changes, a pouch will bring it back down while you address the underlying cause — overfeeding, overstocking, or an undersized filter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eBioscape recommends changing Zeo\/Carbon pouches roughly every 30 days, depending on fish load — heavily stocked tanks exhaust the media faster. Test ammonia periodically and replace sooner if readings start climbing before the 30-day mark. The media is single-use: once exhausted, zeolite and carbon don't recharge by rinsing.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFreshwater and marine aquariums, canister\/power\/trickle\/chemical filters, post-medication clean-up, new-tank ammonia support\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot a substitute for biological filtration in an uncycled tank, and not a fix for an active ammonia spike caused by overstocking — it supplements a water-change and stocking fix rather than replacing one.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered against manufacturing defects under the Bioscape warranty, in addition to your rights under Australian Consumer Law. Ships as a standard parcel item.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I run zeolite and carbon at the same time as other filter media?\u003c\/h4\u003e\u003cp\u003eYes. It's designed to sit alongside biological and mechanical media as your chemical filtration stage.\u003c\/p\u003e\u003ch4\u003eDo I need to rinse the pouches before use?\u003c\/h4\u003e\u003cp\u003eA quick rinse under tap water settles any fine dust from packing before you drop the pouch in.\u003c\/p\u003e\u003ch4\u003eWill it remove medication from my tank?\u003c\/h4\u003e\u003cp\u003eActivated carbon adsorbs many medications, so remove the pouch before dosing and only return it once the course is finished, or it will pull the treatment straight back out of the water.\u003c\/p\u003e\u003ch4\u003eHow long does one pouch last?\u003c\/h4\u003e\u003cp\u003eAround 30 days under moderate stocking. Heavier bioloads exhaust the media faster — an ammonia test kit is the most reliable way to judge when to swap it.\u003c\/p\u003e\u003ch4\u003eWhich pack size should I buy first?\u003c\/h4\u003e\u003cp\u003eStart with the 500 g pack (two pouches) if you're running one filter on a single tank. Step up to 750 g or 1000 g if you're maintaining more than one system or want spares on hand.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"500 g","offer_id":55249199956259,"sku":null,"price":14.95,"currency_code":"AUD","in_stock":true},{"title":"750 g","offer_id":55249199989027,"sku":"BIS192","price":19.95,"currency_code":"AUD","in_stock":true},{"title":"1000 g","offer_id":55249200021795,"sku":"BIS193","price":24.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-zeo-carbon-pouches-10269887627555-1-dq.webp?v=1790372666"},{"product_id":"continuum-captiv-phos-fe","title":"Continuum Captiv Phos Fe","description":"\u003cp\u003e\u003cstrong\u003eContinuum Captiv Phos Fe pulls phosphate and silicate out of reef and freshwater tanks without dyes or algaecides.\u003c\/strong\u003e It's a granular ferric oxide (GFO) media designed to run in a reactor or filter bag, stripping dissolved phosphate down to trace levels so it stops feeding nuisance algae and diatoms. Continuum rates it to bring phosphate down to 0.04 mg\/L or lower, and it's safe across marine, reef and freshwater systems.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFerric oxide media\u003c\/strong\u003e — targets dissolved phosphate and silicate without algaecides or dyes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReef-safe formulation\u003c\/strong\u003e — Continuum states it will not harm marine or freshwater life at the recommended dose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo pack sizes\u003c\/strong\u003e — 300 g for smaller systems, 1.2 kg for larger reactors or bigger tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns in a reactor or bag\u003c\/strong\u003e — loose-fill in a polyester filter bag or chamber, or run in a fluidised bed filter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eGranular ferric oxide (GFO) phosphate and silicate remover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActive constituent\u003c\/th\u003e\n\u003ctd\u003eContinuum describes this as a proprietary activated ferric oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget phosphate level\u003c\/th\u003e\n\u003ctd\u003e0.04 mg\/L (ppm) or lower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended dose\u003c\/th\u003e\n\u003ctd\u003eApprox. 1 g per US gallon (3.8 L), or roughly ⅓ cup per 100 US gallons (400 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitability\u003c\/th\u003e\n\u003ctd\u003eMarine, reef and freshwater aquaria\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack sizes\u003c\/th\u003e\n\u003ctd\u003e300 g, 1.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eDosage and directions\u003c\/h3\u003e\u003ch4\u003eHow much do I use?\u003c\/h4\u003e\u003cp\u003eContinuum recommends roughly 1 g of Captiv Phos Fe per US gallon (3.8 L) of system water, or about one-third of a cup per 100 US gallons (400 L). Run it until phosphate reads 0.04 mg\/L or lower.\u003c\/p\u003e\u003ch4\u003eHow do I run it?\u003c\/h4\u003e\u003cp\u003eRinse the media thoroughly in cold filtered or RO\/DI water before use — it ships dry and dusty. Place it loosely in a polyester filter bag or media chamber where flow can pass gently through it, or run it in a fluidised bed filter. Continuum recommends a particulate pre-filter, such as filter floss or a fine sponge, ahead of the media to stop it clogging with detritus.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e marine, reef and freshwater aquaria running high phosphate or silicate, including systems battling diatoms or nuisance algae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e dosing directly into the water column — this is a media, not a liquid treatment, and needs flow through a bag, reactor or fluidised bed to work.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eWatch phosphate readings rather than the calendar. Continuum's guidance is to replace the media once phosphate starts climbing again, which will happen sooner in heavily stocked or heavily fed systems than in lightly stocked ones.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eKeep out of reach of children and away from pets. Not for human consumption. If the media is swallowed, drink water; if it contacts eyes, flush with water.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eSold with Continuum's standard packaging warranty against manufacturing defects, in addition to the consumer guarantees you're entitled to under Australian Consumer Law. Ships from Nick's Aquarium Oceanarium Terrarium in Brisbane \/ North Lakes, QLD.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this remove silicate as well as phosphate?\u003c\/h4\u003e\u003cp\u003eYes — Continuum states Captiv Phos Fe removes both dissolved phosphate and silicate, which is useful where diatoms rather than green algae are the main complaint.\u003c\/p\u003e\u003ch4\u003eDo I need to rinse it before use?\u003c\/h4\u003e\u003cp\u003eYes. Rinse thoroughly in cold filtered or RO\/DI water first — unrinsed media can cloud the tank with fine dust.\u003c\/p\u003e\u003ch4\u003eCan I dose it straight into the tank?\u003c\/h4\u003e\u003cp\u003eNo. It needs water to flow through it in a bag, reactor or fluidised bed filter — it isn't a liquid dose.\u003c\/p\u003e\u003ch4\u003eIs it safe with my invertebrates?\u003c\/h4\u003e\u003cp\u003eContinuum states the product is formulated to be safe for marine and freshwater life at the recommended dose, without algaecides or dyes.\u003c\/p\u003e","brand":"Continuum","offers":[{"title":"300 g","offer_id":55249697603875,"sku":null,"price":44.95,"currency_code":"AUD","in_stock":false},{"title":"1.2 kg","offer_id":55249697636643,"sku":null,"price":153.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/continuum-captiv-phos-fe-43160358912291.webp?v=1790238166"},{"product_id":"aqua-medic-antiphos-fe-500g-800ml","title":"Aqua Medic Antiphos Fe 500g\/800ml","description":"\u003cp\u003e\u003cstrong\u003e500 g of iron-based GFO, sized for a 300 L system.\u003c\/strong\u003e This is the 500 g (approximately 800 mL by volume) pack of Aqua Medic Antiphos Fe, an aluminium-free iron hydroxide media that binds phosphate and silicate to starve nuisance and diatom algae. It suits both freshwater and marine set-ups, including reef tanks carrying corals and invertebrates.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinds phosphate and silicate\u003c\/strong\u003e — removes the nutrients nuisance algae rely on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium-free\u003c\/strong\u003e — iron hydroxide chemistry, not an aluminium oxide media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated for a 300 L system\u003c\/strong\u003e — under normal bioload, for roughly three to six months.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or marine safe\u003c\/strong\u003e — suits reef, FOWLR, planted and community systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003e800 mL\u003c\/td\u003e\n\u003ctd\u003eAB11651\u003c\/td\u003e\n\u003ctd\u003e4025901142423\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eSetting it up\u003c\/h3\u003e\u003cp\u003eRinse before use. Run in a fluidised reactor for best contact, or a mesh filter bag in good flow if you do not run a reactor. Test phosphate on a schedule and replace once the reading plateaus rather than waiting for it to climb back up.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for phosphate- or silicate-driven algae in freshwater and marine systems up to roughly 300 L at normal bioload. Larger or heavily stocked systems will exhaust this pack faster — for those, see the 1000 g Antiphos Fe pack.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by the manufacturer's standard shelf-life guarantee, in addition to your rights under Australian Consumer Law. Ships standard parcel from North Lakes, QLD.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow long does 500 g actually last?\u003c\/h4\u003e\u003cp\u003eAqua Medic rates it for a 300 L aquarium under normal bioload for roughly three to six months — heavier feeding or stocking will shorten that.\u003c\/p\u003e\u003ch4\u003eCan I mix it with carbon in the same reactor?\u003c\/h4\u003e\u003cp\u003eRun them in separate chambers or reactors where possible — it keeps contact time and flow correct for each media rather than one starving the other of flow.\u003c\/p\u003e\u003ch4\u003eIs it safe for shrimp and other invertebrates?\u003c\/h4\u003e\u003cp\u003eYes, when rinsed and run as directed. It does not add anything harmful to the water column — it is binding phosphate and silicate onto the media itself.\u003c\/p\u003e","brand":"Aqua Medic","offers":[{"title":"Default Title","offer_id":55285029536035,"sku":"AB11651","price":42.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/aqua-medic-antiphos-fe-500g-43507415875875.webp?v=1790234314"},{"product_id":"aqua-medic-reef-life-hydrocarbonate-3-5mm-1ltr","title":"Aqua Medic Reef Life Hydrocarbonate 3-5mm 1ltr","description":"\u003cp\u003e\u003cstrong\u003eFeeds calcium and alkalinity back into a reef tank as CO2 slowly dissolves it.\u003c\/strong\u003e Aqua Medic Reef Life Hydrocarbonate is a pure calcium carbonate media in a 3–5 mm (medium) grain, sized for use in a CO2-fed calcium reactor. As CO2 passes through the reactor chamber it lowers the pH inside, and the acidified water dissolves the media into calcium bicarbonate — which is what actually replaces the calcium and carbonate hardness a reef consumes.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure calcium carbonate\u003c\/strong\u003e — no binders or fillers, so what dissolves is what's stated: calcium, carbon and oxygen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3–5 mm medium grain\u003c\/strong\u003e — a middle ground between fine grades (faster dissolving, more prone to channelling and compaction) and coarse grades (slower, longer bed life). Matches the media size most calcium reactor manufacturers specify as their default fill.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores calcium and alkalinity together\u003c\/strong\u003e — a calcium reactor addresses both parameters from one media, rather than dosing them separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso usable outside a calcium reactor\u003c\/strong\u003e — as a calcite (KH-buffering) filter media, or as a substrate component in marine and African cichlid tanks, where its buffering effect on pH is useful rather than incidental.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition\u003c\/th\u003e\n\u003ctd\u003ePure calcium carbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrain size\u003c\/th\u003e\n\u003ctd\u003e3–5 mm (medium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e1 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary use\u003c\/th\u003e\n\u003ctd\u003eCO2-fed calcium reactor media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOther uses\u003c\/th\u003e\n\u003ctd\u003eCalcite filter media; substrate additive for marine and African cichlid tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eMarine \/ reef\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDosage and directions\u003c\/h3\u003e\u003cp\u003eFill the calcium reactor chamber with media per the reactor manufacturer's instructions, then run CO2 into the chamber to bring the internal pH down until the media begins dissolving. Effluent pH and drip rate are adjusted to match the tank's calcium and alkalinity consumption, not to a fixed schedule — a higher bioload or faster coral growth draws the media down faster.\u003c\/p\u003e\u003ch3\u003eHow long does a litre last?\u003c\/h3\u003e\u003cp\u003eAqua Medic does not publish a fixed \"treats X litres\" figure for this media, and that's genuinely because there isn't one: consumption is driven by your tank's calcium and alkalinity demand and your reactor's effluent rate, not by a dose ratio to system volume the way a salt mix or liquid additive is. As a rough planning guide, a lightly stocked reef draws down a reactor chamber far more slowly than an SPS-heavy, fast-growing system — track your Ca and KH test results rather than the calendar.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e any CO2-fed calcium reactor sized to take loose media in this grain range; marine and reef systems needing ongoing calcium and alkalinity replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e freshwater planted tanks wanting to avoid raised hardness — this media will buffer pH upward and add hardness, which is the opposite of what most planted setups want.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eTop up or replace media once the bed visibly reduces in volume or Ca\/KH readings drift down despite normal reactor operation. Rinse new media isn't required before use.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eSold as a consumable reactor media; standard freight, no special handling required.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eDoes this replace dosing calcium and alkalinity separately?\u003c\/h4\u003e\u003cp\u003eIn a working calcium reactor, yes — the dissolving media supplies both, which is the main reason reactors are used over two-part or all-in-one liquid dosing on larger or heavily stocked systems.\u003c\/p\u003e\u003ch4\u003eCan I use the fine or coarse grade instead?\u003c\/h4\u003e\u003cp\u003eThis is the 3–5 mm medium grade. Aqua Medic also sells fine and coarse grades separately — finer grades dissolve faster but compact more readily, coarser grades last longer between top-ups but dissolve more slowly.\u003c\/p\u003e\u003ch4\u003eWill it affect my tank's pH outside the reactor?\u003c\/h4\u003e\u003cp\u003eOnly via the effluent it produces, which is intentionally lower in pH inside the reactor and raises the tank's alkalinity and calcium once mixed in — it does not lower display tank pH when the reactor is running correctly.\u003c\/p\u003e","brand":"Aqua Medic","offers":[{"title":"Default Title","offer_id":55285033697571,"sku":"AM410912","price":48.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/aqua-medic-reef-life-hydroca-43881272246563.webp?v=1790240040"},{"product_id":"bioscape-61ltr-nano-replace-polywool-filter-pads-3-pack","title":"Bioscape 61ltr Nano Replace Polywool Filter Pads 3 Pack","description":"\u003cp\u003e\u003cstrong\u003eThe mechanical stage of your Nano 61L's filter, ready to swap in seconds.\u003c\/strong\u003e This 3-pack of genuine Bioscape polywool pads is cut to fit the built-in filter chamber of the Bioscape Nano Aquarium 61L only — trapping debris, uneaten food and fine particles before they cloud the water.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSized for the Nano 61L chamber\u003c\/strong\u003e — drops straight in, no cutting or trimming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolywool media\u003c\/strong\u003e — dense mechanical filtration that catches fine particulate other stages miss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 pads per pack\u003c\/strong\u003e — spare capacity for two changes before you need to reorder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSits ahead of the Zeo\/Carb and Bio\/Cylinder stages\u003c\/strong\u003e — keeping the chemical and biological media downstream from clogging with debris\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eBioscape Nano Aquarium 61L (BIS136) only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e3 pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003ePolywool (mechanical filtration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePosition in filter\u003c\/th\u003e\n\u003ctd\u003eFirst stage, ahead of Zeo\/Carb and Bio\/Cylinder media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBIS140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich pad do I need?\u003c\/h3\u003e\u003cp\u003eBioscape sells a separate polywool pad for each Nano tank size — they are not interchangeable between units.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAquarium\u003c\/th\u003e\n\u003cth\u003ePad pack\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNano 24L (BIS134)\u003c\/td\u003e\n\u003ctd\u003eBIS138\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNano 40L (BIS135)\u003c\/td\u003e\n\u003ctd\u003eBIS139\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNano 61L (BIS136)\u003c\/td\u003e\n\u003ctd\u003eBIS140 — this pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eCheck your tank's model or litre rating before ordering — a 24L or 40L pad will not seat correctly in the 61L chamber.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for any Bioscape Nano Aquarium 61L running its stock internal filter. Not suitable for the 24L or 40L Nano units, and not sized for the Bioscape Tropic Canister Filter range (BIS30–BIS34), which uses its own media baskets.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eBioscape doesn't publish a fixed replacement interval for this pad. As a guide, most Nano 61L owners rinse the pad in removed tank water at each partial water change and replace it once it stays discoloured after rinsing or water flow through the filter noticeably drops. Never rinse under tap water — chlorine and chloramine will kill the beneficial bacteria living on the pad's surface.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-bioscape-nano-replace-zeocarbon-cartridges-3-pack\"\u003eBioscape Nano Replace Zeo\/Carbon Cartridges 3 Pack\u003c\/a\u003e — the chemical stage that sits behind this pad\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-nano-replacement-pump-61ltr\"\u003eBioscape Nano Replacement Pump 61L\u003c\/a\u003e — for when flow drops and a clean pad doesn't fix it\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bioscape-nano-replacement-led-light-unit\"\u003eBioscape Nano Replacement LED Light Unit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eFilter media is a consumable item and is not covered by a manufacturer warranty. Standard freight applies.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this pad fit my Nano 24L or 40L?\u003c\/h4\u003e\u003cp\u003eNo. Bioscape makes a dedicated pad for each Nano size — BIS138 for the 24L and BIS139 for the 40L. This pack (BIS140) is cut for the 61L chamber only.\u003c\/p\u003e\u003ch4\u003eHow often should I replace the pad?\u003c\/h4\u003e\u003cp\u003eBioscape doesn't state a fixed interval. Rinse it in removed tank water at each water change and replace it once it no longer rinses clean or flow through the filter drops.\u003c\/p\u003e\u003ch4\u003eCan I rinse it under the tap instead of replacing it every time?\u003c\/h4\u003e\u003cp\u003eYes, and you should — rinsing in tank water extends its life. Just avoid tap water, which will kill the bacteria colonising the pad.\u003c\/p\u003e\u003ch4\u003eDoes this pack include the carbon or Zeo media too?\u003c\/h4\u003e\u003cp\u003eNo. This pack is polywool mechanical media only. The Zeo\/Carb chemical cartridges are sold separately.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293051568419,"sku":"BIS140","price":9.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-61ltr-nano-replace-43179115839779.webp?v=1790233448"},{"product_id":"bioscape-premium-coarse-filter-wool-blue-32-x-12-x-02cm-sheets-3-pack","title":"Bioscape Premium Coarse Filter Wool Blue 32 x 12 x 02cm Sheets 3 Pack","description":"\u003cp\u003e\u003cstrong\u003eCoarse blue wool for the first stage of any filter, cut to size at home.\u003c\/strong\u003e Bioscape Premium Coarse Filter Wool is a pack of three 32 x 12 x 2 cm sheets of blue filter wool. It does the mechanical job in a filter, physically catching free-floating waste and debris before it breaks down into toxins, and as the coarse layer it sits in front of your fine wool, carbon and biological media.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoarse grade\u003c\/strong\u003e, for catching larger debris before it reaches finer media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCuts with scissors\u003c\/strong\u003e to fit canister, hang-on, internal and sump filters, and suits all filter types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree sheets per pack\u003c\/strong\u003e, so spares are on hand for the next change.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSheet size: 32 x 12 x 2 cm\u003c\/li\u003e\n\u003cli\u003ePack: 3 sheets\u003c\/li\u003e\n\u003cli\u003eGrade: coarse, blue\u003c\/li\u003e\n\u003cli\u003eWater type: freshwater and marine\u003c\/li\u003e\n\u003cli\u003eBioscape code: BIS195\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable as the pre-filter layer in canister, hang-on, internal and sump filters. It is not a fine polishing layer; pair it with the Bioscape Premium Fine Filter Wool for clearer water. It is a mechanical layer only and does not replace biological or chemical media.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eRinse in a bucket of tank water rather than under the tap when flow drops, and replace it once it stays compressed or starts to fall apart.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eFilter wool is a consumable item. Your rights under the Australian Consumer Law still apply. Ships by standard parcel post.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293053763875,"sku":"BIS195","price":13.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-premium-coarse-filt-43179145232675.webp?v=1790233448"},{"product_id":"bioscape-premium-fine-filter-wool-32-x-12-x-02cm-sheets-6-pack","title":"Bioscape Premium Fine Filter Wool 32 x 12 x 02cm Sheets 6 Pack","description":"\u003cp\u003e\u003cstrong\u003eFine filter wool that polishes the haze out of the water.\u003c\/strong\u003e Bioscape Premium Fine Filter Wool is a pack of six 32 x 12 x 2 cm sheets of fine filter wool. It sits after your coarse sponge or wool to catch the fine suspended particles that make a tank look cloudy, removing free-floating waste before it breaks down into toxins, and it is the stage you change most often.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine grade\u003c\/strong\u003e, trapping the small particles a coarse sponge lets through.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCuts with scissors\u003c\/strong\u003e to fit canister, hang-on, internal and sump filters, and suits all filter types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSix sheets per pack\u003c\/strong\u003e, so spares are on hand for regular changes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSheet size: 32 x 12 x 2 cm\u003c\/li\u003e\n\u003cli\u003ePack: 6 sheets\u003c\/li\u003e\n\u003cli\u003eGrade: fine\u003c\/li\u003e\n\u003cli\u003eWater type: freshwater and marine\u003c\/li\u003e\n\u003cli\u003eBioscape code: BIS194\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable as the polishing layer in canister, hang-on, internal and sump filters. Not suitable as the only mechanical stage on a heavily stocked tank, where it clogs fast without a coarse layer in front of it.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eFine wool is meant to be replaced rather than scrubbed. Swap it once it turns brown or flow drops, keeping your sponge and biological media in place so the filter's bacteria carry on undisturbed.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eFilter wool is a consumable item. Your rights under the Australian Consumer Law still apply. Ships by standard parcel post.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293053796643,"sku":"BIS194","price":10.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-premium-fine-filter-43179145265443.webp?v=1790233447"},{"product_id":"bioscape-carbon-extraction-cubes-100","title":"Bioscape Carbon Extraction Cubes 100+","description":"\u003cp\u003e\u003cstrong\u003eLoose carbon cubes that fill any filter's media basket, not just Bioscape's own.\u003c\/strong\u003e Each pack holds 100+ activated-carbon poly-fibre cubes, about 4 × 3 cm each, so you fill the tray to the depth your filter needs instead of being locked into one brand's pre-cut cartridge.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100+ cubes per pack\u003c\/strong\u003e — enough to refill most media baskets several times over, or top up several filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits any basket-style filter\u003c\/strong\u003e — canister, power, trickle, wet\/dry and pond filters all take loose media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves tannins, odour and discolouration\u003c\/strong\u003e — activated carbon adsorbs dissolved organics, chlorine and phenols.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and marine safe\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBIS350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e100+ cubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCube size\u003c\/th\u003e\n\u003ctd\u003eApprox. 4 × 3 cm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003eActivated-carbon-impregnated poly-fibre cube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eCanister, power, trickle, wet\/dry and pond filters (loose-fill media baskets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\u003cp\u003eThese are loose media, not a shaped cartridge, so fit isn't model-specific — pack enough cubes into your media basket or bag to match the volume your existing carbon cartridge takes up. They suit any filter with an open media tray or a mesh media bag rather than a filter that only accepts a proprietary sealed cartridge.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eBioscape recommends changing the cubes every 30–60 days depending on fish load — plan on the shorter end in a heavily stocked tank, and use a nitrate or general water test as the real guide rather than the calendar alone. Exhausted carbon isn't harmful left in the filter, it simply stops adsorbing.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e any filter with a media basket or bag — freshwater or marine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e filters that only accept a sealed, shaped cartridge with no room for loose media.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by your consumer guarantee rights under Australian Consumer Law if faulty on arrival. Ships as a small parcel.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow many cubes do I need per filter?\u003c\/h4\u003e\u003cp\u003eEnough to fill your media basket to roughly the depth of your old carbon cartridge — Bioscape doesn't publish an exact count per filter size since baskets vary by brand.\u003c\/p\u003e\u003ch4\u003eHow often should I replace them?\u003c\/h4\u003e\u003cp\u003eEvery 30–60 days depending on stocking level, sooner in a heavily fed or heavily stocked tank.\u003c\/p\u003e\u003ch4\u003eCan I mix these with biological or mechanical media in the same basket?\u003c\/h4\u003e\u003cp\u003eYes — carbon cubes are typically run alongside foam and bio-media in the same tray, in a separate stage or mesh bag.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293057138979,"sku":"BIS350","price":18.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-carbon-extraction-c-43179149426979.webp?v=1790233450"},{"product_id":"bioscape-phosphate-extraction-cubes-85","title":"Bioscape Phosphate Extraction Cubes 85+","description":"\u003cp\u003e\u003cstrong\u003ePhosphate absorbing cubes that sit loose in your filter.\u003c\/strong\u003e Bioscape Phosphate Extraction Cubes are poly fibre pads cut into cubes about 4 x 3 cm and impregnated with a resin that absorbs phosphate, with 85 or more cubes in a pack. Phosphate feeds nuisance algae, and it builds up from decaying organic matter, overfeeding, overcrowding and too few water changes, so keeping it down helps keep algae under control.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits most filters\u003c\/strong\u003e: canister filters, power filters (filters with a built-in motor, such as hang on the back types), trickle filters, wet\/dry filters, pond filters and other mechanical filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoose cubes\u003c\/strong\u003e, so you can fill whatever space your media basket or tray has rather than cutting a sheet to fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace every 30 to 60 days\u003c\/strong\u003e, depending on how quickly phosphate rises in your tank.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack: 85 or more cubes\u003c\/li\u003e\n\u003cli\u003eCube size: about 4 x 3 cm\u003c\/li\u003e\n\u003cli\u003eMedia: poly fibre impregnated with phosphate absorbing resin\u003c\/li\u003e\n\u003cli\u003eReplacement: every 30 to 60 days\u003c\/li\u003e\n\u003cli\u003eBioscape item number: BIS352\u003c\/li\u003e\n\u003cli\u003eBarcode: 9327975047993\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for aquariums and ponds where phosphate keeps rising between water changes. It supports water changes and sensible feeding rather than replacing them. Bioscape does not say whether the cubes suit freshwater, marine or both, so ask us before using them in a reef tank.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eStart using the cubes once phosphate begins to rise above an acceptable level. Test your water regularly, and replace the cubes when the reading starts climbing again, usually within 30 to 60 days.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by your consumer guarantee rights under Australian Consumer Law against manufacturing faults. Ships by standard parcel post.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293057171747,"sku":"BIS352","price":18.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-phosphate-extractio-43179149459747.webp?v=1790233450"},{"product_id":"bioscape-tropic-canister-filter-800-1200-fine-white-bio-wool-2","title":"Bioscape Tropic Canister Filter 800\/1200 Fine White Bio Wool 2","description":"\u003cp\u003e\u003cstrong\u003eThe genuine Bioscape fine wool pads for the Tropic 800 and 1200 canisters.\u003c\/strong\u003e This twin pack of Bioscape Fine White Bio Wool is made to fit the Bioscape Tropic Canister Filter 800 and 1200, the external filters that sit in the cabinet under the tank (the same pads are also listed under the Aqua Pro name). The micro-fine white pad catches the fine particles that make water look hazy, and it is the pad you replace most often.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade to fit\u003c\/strong\u003e the 800 and 1200 media baskets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine grade\u003c\/strong\u003e, trapping the tiny particles and debris that cloud the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin pack\u003c\/strong\u003e, so a spare is on hand for the next change.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits: Bioscape Tropic Canister Filter 800 and 1200 (also listed as Aqua Pro 800\/1200)\u003c\/li\u003e\n\u003cli\u003ePack: 2 pads\u003c\/li\u003e\n\u003cli\u003eGrade: fine, white\u003c\/li\u003e\n\u003cli\u003eWater type: freshwater and marine\u003c\/li\u003e\n\u003cli\u003eBioscape code: QHU10A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for the 800 and 1200 litre per hour Tropic canisters. Not for the 1800 and 2200 models, which take their own pads. More parts are in our \u003ca href=\"\/collections\/spare-parts-bioscape\"\u003eBioscape spare parts\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eReplace every six weeks, or sooner once the pad is brown through and flow has dropped. Fine wool is meant to be swapped rather than washed; leave the biological media undisturbed when you do.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eFilter media is a consumable item. Your rights under the Australian Consumer Law still apply. Ships as a small parcel.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293072933155,"sku":"QHU10A","price":14.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-tropic-canister-fil-43179180949795.webp?v=1790234717"},{"product_id":"fluval-fx4-fx6-phosphate-pads-3-pack","title":"Fluval FX2\/FX4\/FX5\/FX6 Phosphate Pads 3 Pack","description":"\u003cp\u003e\u003cstrong\u003ePhosphate remover pads cut to fit the Fluval FX canister baskets.\u003c\/strong\u003e These Fluval pads (Fluval item A262) are infused with a phosphate-removing resin, so they work as both mechanical media (they trap floating debris, excess food and waste) and chemical media (they take phosphate out of the water). Phosphate is a nutrient that feeds nuisance algae, and Fluval designs these pads to help control it. Fluval lists them for the FX2, FX4, FX5 and FX6 canister filters (a canister filter is a sealed filter that sits below the tank).\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo jobs in one pad\u003c\/strong\u003e: traps particles for clearer water and removes phosphate as water passes through.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom fit\u003c\/strong\u003e for the FX media baskets.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThree pads per pack.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and saltwater\u003c\/strong\u003e use, according to Fluval.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFluval item number: A262\u003c\/li\u003e\n\u003cli\u003eFits: Fluval FX2, FX4, FX5 and FX6 canister filters\u003c\/li\u003e\n\u003cli\u003ePack: 3 pads\u003c\/li\u003e\n\u003cli\u003eWater type: freshwater and saltwater\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for FX2, FX4, FX5 and FX6 filters on freshwater or saltwater tanks where phosphate is running high or algae is a problem. Not sized for Fluval's 07 series or G series filters, which have their own media. The pad controls phosphate, so it works alongside regular water changes and sensible feeding rather than replacing them.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eTest phosphate regularly. When readings start to climb again, the resin is spent and the pad should be replaced.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eAny warranty Fluval offers applies in addition to your rights under Australian Consumer Law. Ships by standard parcel post.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293291921699,"sku":"FA152","price":10.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-fx4-fx6-phosphate-pad-43875448095011.webp?v=1790236672"},{"product_id":"arm-reactor-media","title":"ARM Reactor Media","description":"\u003cp\u003e\u003cstrong\u003eCoarse aragonite that dissolves cleanly without packing your reactor.\u003c\/strong\u003e CaribSea ARM is the aragonite media that sits inside a calcium reactor, where injected carbon dioxide lowers the pH inside the chamber and dissolves it, returning calcium and carbonate to the tank. This page sells the two coarse grades - ARM Coarse and ARM Extra Coarse - in 1 US gallon (3.79 litre) jars of roughly 4.2 kg. Both grades carry the same published analysis: 416,000 ppm calcium and 577,000 ppm carbonate.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSized against clogging\u003c\/strong\u003e - CaribSea specifies the Coarse grade for rapid upflow reactors, to avoid the packing and channelling that fine media causes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e41.6% calcium, 57.7% carbonate\u003c\/strong\u003e - a high-purity aragonite that returns both halves of the calcium carbonate equation together, in the ratio corals use them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrace strontium and magnesium\u003c\/strong\u003e - 3,300 ppm strontium and 1,400 ppm magnesium dissolve along with the calcium and carbonate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo grades on one page\u003c\/strong\u003e - Coarse and Extra Coarse, both at the same published composition and bulk density.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsumed rather than exhausted\u003c\/strong\u003e - the media dissolves away over months, so you top the chamber up rather than replacing a spent cartridge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003eAragonite media for calcium reactors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrades on this page\u003c\/th\u003e\n\u003ctd\u003eCoarse and Extra Coarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContainer\u003c\/th\u003e\n\u003ctd\u003e1 US gallon jar (3.79 litres)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBulk density\u003c\/th\u003e\n\u003ctd\u003e70 lb per cubic foot (1.12 kg per litre)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApproximate weight per jar\u003c\/th\u003e\n\u003ctd\u003e4.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalcium\u003c\/th\u003e\n\u003ctd\u003e416,000 ppm (41.6%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCarbonate\u003c\/th\u003e\n\u003ctd\u003e577,000 ppm (57.7%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStrontium\u003c\/th\u003e\n\u003ctd\u003e3,300 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnesium\u003c\/th\u003e\n\u003ctd\u003e1,400 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePotassium\u003c\/th\u003e\n\u003ctd\u003e56 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eMarine and reef only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplier codes\u003c\/th\u003e\n\u003ctd\u003eCS0529 (Coarse), CS0531 (Extra Coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch3\u003eWhich grade do I need?\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003cth\u003eCaribSea's stated purpose\u003c\/th\u003e\n\u003cth\u003ePublished analysis\u003c\/th\u003e\n\u003cth\u003eChoose it when\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eARM Coarse\u003c\/td\u003e\n\u003ctd\u003eSpecified for rapid upflow type reactors, to prevent the clogging and upkeep associated with fine media\u003c\/td\u003e\n\u003ctd\u003e416,000 ppm Ca, 577,000 ppm carbonate, 3,300 ppm Sr, 1,400 ppm Mg, 56 ppm K\u003c\/td\u003e\n\u003ctd\u003eYour reactor recirculates briskly, or you have had fine media pack down and channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eARM Extra Coarse\u003c\/td\u003e\n\u003ctd\u003eMarketed by CaribSea as a high magnesium reactor media\u003c\/td\u003e\n\u003ctd\u003eIdentical published figures to Coarse\u003c\/td\u003e\n\u003ctd\u003eYou want the largest grain available, typically in a high-flow or larger-chamber reactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch4\u003eAn honest note on the two grades\u003c\/h4\u003e\n\u003cp\u003eCaribSea markets Extra Coarse as its high magnesium media, but publishes exactly the same elemental analysis for both grades - 1,400 ppm magnesium either way. On the published figures the difference between them is grain size, not chemistry. CaribSea does not publish a millimetre range for either grade, so we are not going to state one.\u003c\/p\u003e\n\u003cp\u003eIf your magnesium is running low, a calcium reactor is not the tool to fix it in any case. A dedicated magnesium supplement moves the number; reactor media does not, at 0.14% of the dissolved mass.\u003c\/p\u003e\n\n\u003ch3\u003eWhat a calcium reactor actually does\u003c\/h3\u003e\n\u003cp\u003eCarbon dioxide is injected into the reactor chamber, dropping the pH inside it to roughly 6.5. At that pH the aragonite dissolves, and the effluent leaving the reactor carries calcium and carbonate back to the display tank.\u003c\/p\u003e\n\u003cp\u003eThe appeal is that both parameters move together, in the ratio corals lay down skeleton, from a single device. The catch is that it takes real tuning - bubble count, effluent drip rate and reactor pH all interact, and a reactor set too aggressively will drive display pH down.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e marine reef aquariums running a calcium reactor, particularly rapid upflow and recirculating designs; systems with a stony coral load large enough to justify a reactor over two-part dosing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e freshwater aquariums of any kind. It is not a substitute for a two-part calcium and alkalinity dosing system, it is not a filter medium, and it will not correct magnesium. It is also not a media for a fluidised bed or a phosphate reactor.\u003c\/p\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eMedia is consumed rather than clogged, so it does not have a replacement interval - top up the chamber when the level visibly drops. CaribSea does not publish a service interval for ARM.\u003c\/p\u003e\n\u003cp\u003eCheck effluent alkalinity and display calcium and alkalinity regularly, especially after topping up. A freshly filled chamber dissolves a little differently to one that is half empty, and the drip rate usually wants a small adjustment afterwards.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/caribsea-purple-up\"\u003eCaribSea Purple-Up\u003c\/a\u003e - calcium and carbonate supplement for tanks not yet running a reactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/arag-alive-bimini-pink-20lb-9-072kg\"\u003eCaribSea Arag-Alive Bimini Pink\u003c\/a\u003e - live aragonite sand for the display bed.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/life-rock-shapes-20lb-9kg\"\u003eCaribSea Life Rock Shapes\u003c\/a\u003e - aragonite aquascaping rock for the same system.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-coral-pro-sea-salts-22-kg-660-ltr-bucket\"\u003eRed Sea Coral Pro Salt 22 kg\u003c\/a\u003e - a higher calcium and alkalinity salt for the water changes alongside it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCaribSea does not publish a warranty term for reactor media. Your rights under the Australian Consumer Law apply regardless, and are not limited by anything the manufacturer does or does not offer.\u003c\/p\u003e\n\u003cp\u003eEach jar holds 1 US gallon and weighs around 4.2 kg.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat grain size is ARM Coarse in millimetres?\u003c\/h4\u003e\n\u003cp\u003eCaribSea does not publish a millimetre range for ARM Coarse or Extra Coarse, so we do not quote one. What CaribSea does state is the purpose: the Coarse grade is specified for rapid upflow reactors, where fine media clogs and channels.\u003c\/p\u003e\n\u003ch4\u003eHow much media does my reactor need?\u003c\/h4\u003e\n\u003cp\u003eFill to the level your reactor's manufacturer specifies, which is usually a stated chamber volume rather than a weight. As a conversion, a 1 US gallon jar is 3.79 litres of chamber space at roughly 4.2 kg.\u003c\/p\u003e\n\u003ch4\u003eHow often do I replace ARM media?\u003c\/h4\u003e\n\u003cp\u003eYou do not replace it on a schedule - it dissolves away and you top the chamber up when the level drops. CaribSea publishes no service interval for ARM.\u003c\/p\u003e\n\u003ch4\u003eIs Extra Coarse really higher in magnesium than Coarse?\u003c\/h4\u003e\n\u003cp\u003eCaribSea markets Extra Coarse as a high magnesium media, but publishes an identical analysis for both grades at 1,400 ppm magnesium. On the published numbers the practical difference is grain size.\u003c\/p\u003e\n\u003ch4\u003eWill a calcium reactor raise my magnesium?\u003c\/h4\u003e\n\u003cp\u003eNot meaningfully. Magnesium is around 0.14% of ARM's published composition against 41.6% calcium, so the calcium and alkalinity move long before magnesium does. Dose magnesium separately if the number needs correcting.\u003c\/p\u003e\n\u003ch4\u003eCan I use ARM in a freshwater tank?\u003c\/h4\u003e\n\u003cp\u003eNo. It is a marine reef product for calcium reactors. In freshwater it would simply raise pH and hardness, and there are substrates designed for that job instead.\u003c\/p\u003e\n","brand":"CaribSea","offers":[{"title":"Coarse","offer_id":55293347627299,"sku":"CS0529","price":66.95,"currency_code":"AUD","in_stock":false},{"title":"X Coarse","offer_id":55335405355299,"sku":"CS0531","price":66.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/arm-reactor-media-43203674308899.webp?v=1790238521"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/collections\/BE11_b074c85a-2f97-458b-8c66-117875d366df.png?v=1788252649","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/collections\/sw-filter-media.oembed","provider":"Nicks AOT","version":"1.0","type":"link"}