{"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\u003cli\u003e\n\u003cstrong\u003eFrom 2c per litre of treated saltwater on the 4 L pack\u003c\/strong\u003e — buying the largest size you'll use costs meaningfully less per litre treated than the smallest.\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 — so bigger packs simply cost less per litre of water treated, not a different formula. 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\u003ePrice\u003c\/th\u003e\n\u003cth\u003eTreats (saltwater)\u003c\/th\u003e\n\u003cth\u003eCost per litre (saltwater)\u003c\/th\u003e\n\u003cth\u003eTreats (freshwater)\u003c\/th\u003e\n\u003cth\u003eCost per litre (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$34.95\u003c\/td\u003e\n\u003ctd\u003e~333 L\u003c\/td\u003e\n\u003ctd\u003e10c per litre\u003c\/td\u003e\n\u003ctd\u003e~667 L\u003c\/td\u003e\n\u003ctd\u003e5c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mL\u003c\/td\u003e\n\u003ctd\u003e$43.95\u003c\/td\u003e\n\u003ctd\u003e~833 L\u003c\/td\u003e\n\u003ctd\u003e5c per litre\u003c\/td\u003e\n\u003ctd\u003e~1,667 L\u003c\/td\u003e\n\u003ctd\u003e2c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003e$77.95\u003c\/td\u003e\n\u003ctd\u003e~1,667 L\u003c\/td\u003e\n\u003ctd\u003e4c per litre\u003c\/td\u003e\n\u003ctd\u003e~3,333 L\u003c\/td\u003e\n\u003ctd\u003e2c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 L\u003c\/td\u003e\n\u003ctd\u003e$133.95\u003c\/td\u003e\n\u003ctd\u003e~3,333 L\u003c\/td\u003e\n\u003ctd\u003e4c per litre\u003c\/td\u003e\n\u003ctd\u003e~6,667 L\u003c\/td\u003e\n\u003ctd\u003e2c per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 L\u003c\/td\u003e\n\u003ctd\u003e$358.95\u003c\/td\u003e\n\u003ctd\u003e~13,333 L\u003c\/td\u003e\n\u003ctd\u003e2c per litre\u003c\/td\u003e\n\u003ctd\u003e~26,667 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\u003eFigures are based on Seachem's published dose rate, calculated at each size's list price. The 100 mL bottle costs roughly five times more per litre of saltwater treated than the 4 L pack — worth knowing if you're running a large reef system and refreshing media regularly.\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\u003ch4\u003eIs the bigger pack actually better value?\u003c\/h4\u003e\u003cp\u003eYes — at saltwater dosing, the 4 L pack works out to around 2c per litre of water treated, versus around 10c per litre on the 100 mL bottle.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":55244173508899,"sku":null,"price":34.95,"currency_code":"AUD","in_stock":true},{"title":"250 mL","offer_id":55244173541667,"sku":null,"price":43.95,"currency_code":"AUD","in_stock":true},{"title":"500 mL","offer_id":55244173574435,"sku":null,"price":77.95,"currency_code":"AUD","in_stock":true},{"title":"1 L","offer_id":55244173607203,"sku":null,"price":133.95,"currency_code":"AUD","in_stock":true},{"title":"4 L","offer_id":55244173639971,"sku":null,"price":358.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/1263-phosbond-4-l_4ca05e62-72d8-4d25-af9b-574f26c19bcd.png?v=1782710722","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/seachem-phosbond","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}