{"product_id":"fluval-ac20-30-biomax-insert-42gm","title":"Fluval AC20\/30 Biomax Insert 42gm","description":"\u003cp\u003e\u003cstrong\u003eExtra surface area for the bacteria that break down waste.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFluval's Biomax insert for the AquaClear 20 and AquaClear 30, 42 g, is the biological stage of the AC20\/30 media basket. Its porous rings spread water flow evenly and hold it in contact longer, giving nitrifying bacteria more surface to establish on than an empty basket ever could. It suits any AC20 or AC30 owner topping up or replacing the biological media that came with the filter.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorous ring design\u003c\/strong\u003e — increases contact time between water and the bacterial colony living on the media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits AC20 and AC30\u003c\/strong\u003e — one 42 g insert, sized for the top-front section of either basket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh and saltwater safe\u003c\/strong\u003e — the same insert works across both water types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinseable, not disposable on a fixed schedule\u003c\/strong\u003e — cleaned in place rather than replaced every month.\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\u003eFluval item\u003c\/th\u003e\n\u003ctd\u003e19660\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e42 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eAquaClear 20, AquaClear 30 power filters\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\u003ePosition in basket\u003c\/th\u003e\n\u003ctd\u003eTop front section\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003cth\u003eAquarium size\u003c\/th\u003e\n\u003cth\u003eFlow rate\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaClear 20\u003c\/td\u003e\n\u003ctd\u003e18–76 L\u003c\/td\u003e\n\u003ctd\u003e379 L\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaClear 30\u003c\/td\u003e\n\u003ctd\u003e38–114 L\u003c\/td\u003e\n\u003ctd\u003e568 L\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis is the 42 g size used across both the AC20 and AC30 baskets. The AquaClear 50 takes a larger 125 g insert and the AC70 a 195 g insert — check your filter's model number before ordering a replacement.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for topping up or replacing Biomax in an AC20 or AC30 basket, freshwater or marine. Not suitable for the AC50, 70 or 110 baskets, which need a larger insert.\u003c\/p\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eRinse before first use. Fluval's own maintenance schedule for the AC series calls for a rinse roughly every two months and a full replacement around every three — sooner in a heavily stocked tank, since a clogged pore structure stops carrying the bacterial load it's designed for.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-ac20-30-clear-carb-insert-1-pack\"\u003eClear-Carb Insert\u003c\/a\u003e — the chemical stage that sits alongside Biomax in the same basket\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-ac30-bio-foam-insert-blue-3-pack\"\u003eBio-Foam Insert\u003c\/a\u003e — the mechanical stage underneath\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eSold as genuine Fluval filter media. Your rights under the Australian Consumer Law apply in full and nothing here limits them. Ships as a standard small parcel anywhere in Australia.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eIs this ceramic media?\u003c\/h4\u003e\n\u003cp\u003eFluval doesn't publish the exact material on this insert, so we don't state a composition we can't confirm. It's described as a porous ring media designed for biological filtration.\u003c\/p\u003e\n\u003ch4\u003eDo I rinse it in tap water or tank water?\u003c\/h4\u003e\n\u003cp\u003eFluval's manual says to rinse thoroughly without specifying the water source. Many keepers use removed tank water to avoid killing off the bacterial colony with chlorinated tap water.\u003c\/p\u003e\n\u003ch4\u003eDoes the same insert fit the AquaClear 50?\u003c\/h4\u003e\n\u003cp\u003eNo. The AC50 uses a larger 125 g Biomax insert. This 42 g size is for the AC20 and AC30 only.\u003c\/p\u003e\n\u003ch4\u003eHow often does it need replacing?\u003c\/h4\u003e\n\u003cp\u003eFluval's maintenance chart suggests rinsing around every two months and replacing around every three, though a heavily stocked tank may need it sooner.\u003c\/p\u003e\n\u003ch4\u003eCan I use it in a saltwater tank?\u003c\/h4\u003e\n\u003cp\u003eYes. This insert is listed for both freshwater and saltwater AquaClear 20\/30 filters.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293294575907,"sku":"FAQ15","price":8.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/FAQ15_4.jpg?v=1782879416","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-ac20-30-biomax-insert-42gm","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}