{"product_id":"aqua-medic-carbolit","title":"Aqua Medic Carbolit","description":"\u003cp\u003e\u003cstrong\u003ePellet-form activated carbon that pulls yellowing, odours and medication residue out of tank water fast.\u003c\/strong\u003e Aqua Medic Carbolit is a pH-neutral activated carbon, sold in 1.5 mm and 4 mm pellet sizes and in two pack sizes for each. It clears discolouration and turbidity, strips out medication residues after a treatment course, and once established, adds a small amount of biological filtration on top of its chemical role.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves discolouration, turbidity and odours\u003c\/strong\u003e — the standard job for carbon in a running system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClears medication residue\u003c\/strong\u003e — run it after a treatment course to strip out what's left before returning fish or invertebrates to the display.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH-neutral\u003c\/strong\u003e — won't push pH around the way some cheaper carbons can.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePellet form, not powder\u003c\/strong\u003e — easier to rinse, less prone to dusting the tank on first fill, and simple to bag or load into a reactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater safe\u003c\/strong\u003e — one product across both setups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003eActivated carbon, pH-neutral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePellet sizes\u003c\/th\u003e\n\u003ctd\u003e1.5 mm or 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack sizes\u003c\/th\u003e\n\u003ctd\u003e500 g or 3.5 kg, per pellet size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFresh and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eMedia reactor or filter media bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich pack do I need?\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eVariant\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g \/ 650 ml, 1.5 mm pellet\u003c\/td\u003e\n\u003ctd\u003eAB11518\u003c\/td\u003e\n\u003ctd\u003eSmaller tanks, or topping up an existing reactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5 kg \/ 4.5 L, 1.5 mm pellet\u003c\/td\u003e\n\u003ctd\u003eAB11519\u003c\/td\u003e\n\u003ctd\u003eLarger systems, or stocking up on the finer pellet size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 g \/ 700 ml, 4 mm pellet\u003c\/td\u003e\n\u003ctd\u003eAB12518\u003c\/td\u003e\n\u003ctd\u003eSmaller tanks running the coarser pellet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5 kg \/ 4.9 L, 4 mm pellet\u003c\/td\u003e\n\u003ctd\u003eAB12519\u003c\/td\u003e\n\u003ctd\u003eLarger systems running the coarser pellet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eThe two pellet sizes do the same job. The 1.5 mm pellet packs more surface area into the same volume for slightly faster initial action; the 4 mm pellet is easier to rinse clean and less likely to work its way through a coarse media bag. Either works loaded into a reactor or a media bag in the filter or sump.\u003c\/p\u003e\u003ch3\u003eDosage and directions\u003c\/h3\u003e\u003cp\u003eAqua Medic does not publish an exact dosage rate per litre for Carbolit, so none is stated here as if it were their figure. As a general guide used across activated carbon products in the hobby — not an Aqua Medic-specific number — many reefers start around 100 g of carbon per 100 L of tank water and replace it every 2 to 4 weeks, introducing new carbon gradually rather than all at once, since a large dose can shift water chemistry quickly enough to stress corals. Treat that as a starting point to adjust from, not a fixed rule.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e ongoing water polishing, post-medication clean-up, and general odour and discolouration control in both freshwater and marine systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e removing ammonia, nitrite or nitrate — carbon is not a biological filter substitute for those; it also won't remove dissolved copper or heavy metals reliably, so don't rely on it after a copper treatment.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRinse pellets under running water before use to clear dust.\u003c\/li\u003e\n\u003cli\u003eReplace on a rolling schedule rather than leaving it in indefinitely — spent carbon can start releasing what it's absorbed back into the water.\u003c\/li\u003e\n\u003cli\u003eRun carbon in a bag or reactor with reasonable flow through it, not a dead spot in the sump.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aqua-medic-multi-reactor-gen-ii\"\u003eAqua Medic Multi Reactor Gen II\u003c\/a\u003e — a media reactor sized to run Carbolit with proper flow through it.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-filter-media-bags\"\u003eRed Sea Filter Media Bags\u003c\/a\u003e — for running Carbolit loose in a sump or canister without a reactor.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Aqua Medic's standard manufacturer warranty against defects, 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 the 1.5 mm and 4 mm pellet?\u003c\/h4\u003e\u003cp\u003eBoth are the same activated carbon; the pellet size differs. The 1.5 mm pellet has more surface area for its volume, while the 4 mm pellet is easier to rinse and less likely to escape a coarse media bag. Either works well in a reactor or bag.\u003c\/p\u003e\u003ch4\u003eHow much do I need, and how often do I replace it?\u003c\/h4\u003e\u003cp\u003eAqua Medic doesn't publish an exact dosage figure for Carbolit. As general practice across activated carbons, many reefers run roughly 100 g per 100 L and replace every 2 to 4 weeks — use that as a starting point and adjust to your system rather than treating it as fixed.\u003c\/p\u003e\u003ch4\u003eWill this remove ammonia or nitrate?\u003c\/h4\u003e\u003cp\u003eNo. Activated carbon targets dissolved organics, discolouration and medication residue — it isn't a substitute for biological filtration or nitrate export.\u003c\/p\u003e\u003ch4\u003eCan I use it straight after a copper-based medication?\u003c\/h4\u003e\u003cp\u003eDon't rely on carbon to clear copper reliably. Use a water change and, if needed, a product specifically rated for metal removal before returning sensitive livestock.\u003c\/p\u003e","brand":"Aqua Medic","offers":[{"title":"500g\/650ml 1.5mm Pellet","offer_id":55285029437731,"sku":"AB11518","price":20.95,"currency_code":"AUD","in_stock":false},{"title":"3.5kg\/4.5L 1.5mm Pellet","offer_id":55335401488675,"sku":"AB11519","price":122.95,"currency_code":"AUD","in_stock":false},{"title":"500g\/700ml 4mm Pellet","offer_id":55335401521443,"sku":"AB12518","price":32.95,"currency_code":"AUD","in_stock":false},{"title":"3.5kg\/4.9L 4mm Pellet","offer_id":55335401554211,"sku":"AB12519","price":184.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/aqua-medic-carbolit-43507416236323.webp?v=1790234313","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/aqua-medic-carbolit","provider":"Nicks AOT","version":"1.0","type":"link"}