{"product_id":"fluval-ac50-biomax-insert-80gm","title":"Fluval AC50 Biomax Insert 80gm","description":"\u003cp\u003e\u003cstrong\u003eCultures the bacteria that finish the nitrogen cycle.\u003c\/strong\u003e This is the genuine Fluval BioMax insert for the AquaClear 50 (AC50) power filter, part 19662, supplied as a single 80 g bag. It is the biological stage at the back of the AC50's media basket, closest to the motor and the return waterfall.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Fluval part 19662\u003c\/strong\u003e — sized to the AC50 basket's rear compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNodular bio-ring structure\u003c\/strong\u003e — an irregular surface that gives bacteria more contact area than a smooth ceramic ring of the same volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduces ammonia and nitrite\u003c\/strong\u003e — the bacteria colonising the rings are what finish the nitrogen cycle; the foam and chemical media ahead of it only prepare the water for this stage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMesh bag included\u003c\/strong\u003e — drops straight into the basket without loose rings scattering through the impeller well.\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\u003eManufacturer part number\u003c\/th\u003e\n\u003ctd\u003e19662\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e80 g (2.8 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003eSingle bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFiltration stage\u003c\/th\u003e\n\u003ctd\u003eBiological\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\u003eRecommended replacement\u003c\/th\u003e\n\u003ctd\u003eEvery 3 months\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\u003eTakes this insert\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaClear 50 \/ AC50\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaClear 70 \/ AC70, 110 \/ AC110\u003c\/td\u003e\n\u003ctd\u003eNo — these take the larger 125 g BioMax bag, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaClear 20 \/ AC20, 30 \/ AC30\u003c\/td\u003e\n\u003ctd\u003eNo — smaller BioMax bag, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFluval packs a different BioMax weight for each AquaClear body, so check the model number on your filter before ordering rather than going by tank size alone.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e1 x BioMax bag, 80 g, in its own mesh sleeve\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003ch3\u003eNot included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003ca href=\"\/products\/fluval-ac50-bio-foam-insert-blue-3-pack\"\u003eBio-Foam\u003c\/a\u003e and chemical media stages that sit ahead of it in the basket.\u003c\/li\u003e\n\u003cli\u003eThe AC50 filter unit itself.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for scheduled replacement on any AquaClear 50 \/ AC50, and for restoring biological capacity after a deep clean or a filter that ran dry.\u003c\/p\u003e\n\u003cp\u003eNot suitable for the AC20, AC30, AC70 or AC110 — each takes a BioMax bag sized to its own basket.\u003c\/p\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eRinse in removed tank water at each service, never under tap water, which will chlorinate the colony. Replace on the 3-month schedule even if the rings still look clean — the bacterial film doing the work isn't visible, and ageing rings compact and channel water around themselves.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-ac50-bio-foam-insert-blue-3-pack\"\u003eBio-Foam insert for AC50\u003c\/a\u003e — the mechanical stage ahead of this one\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-ac50-clear-carb-insert-1-pack\"\u003eClear-Carb insert for AC50\u003c\/a\u003e — chemical polishing media for the middle stage\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-aquaclear-hang-on-filter-motor-ac20-30-50-70\"\u003eAquaClear hang-on filter motor\u003c\/a\u003e — for a full rebuild rather than a media change\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eSupplied as genuine Fluval replacement 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\u003eHow often should I replace the AC50 BioMax insert?\u003c\/h4\u003e\n\u003cp\u003eEvery 3 months. Replacing sooner isn't necessary and discards an established bacterial colony for no benefit.\u003c\/p\u003e\n\u003ch4\u003eShould I replace the foam and BioMax at the same time?\u003c\/h4\u003e\n\u003cp\u003eNo — stagger them. Replacing every media stage in the basket at once removes most of the tank's biological filtration in one go, which risks a mini-cycle.\u003c\/p\u003e\n\u003ch4\u003eWill the AC70 BioMax bag fit my AC50?\u003c\/h4\u003e\n\u003cp\u003eNo — it's the wrong weight for the AC50's basket and is sized for the larger AC70\/AC110 body. Use the 80 g bag made for the AC50.\u003c\/p\u003e\n","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293294674211,"sku":"FAQ16","price":11.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-ac50-biomax-insert-80-43180034556195.webp?v=1790234937","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-ac50-biomax-insert-80gm","provider":"Nicks AOT","version":"1.0","type":"link"}