{"product_id":"fluval-bio-fx-biological-media-5ltr-box","title":"Fluval Bio FX Biological Media 5ltr Box","description":"\u003cp\u003e\u003cstrong\u003eFive litres of high-surface-area ceramic media built to finish off your filter's biological stage.\u003c\/strong\u003e Fluval Bio-FX is a porous ceramic ring media designed for large-capacity canister filters and sump systems, giving colonising bacteria a large amount of contact area to break down ammonia and nitrite. It ships in a zip-top mesh bag ready to drop straight into the last basket of your filter.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh surface area\u003c\/strong\u003e — 2,250 m² per litre, or roughly 11,250 m² across the full 5 L pack, for a large ceramic ring media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep pore structure\u003c\/strong\u003e — interconnected micro-tunnels increase dwell time so bacteria have longer contact with passing water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo nugget sizes\u003c\/strong\u003e — mixed grades pack more tightly without choking flow through the basket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZip-mesh bag included\u003c\/strong\u003e — lift the whole 5 L charge out for rinsing without handling loose media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInert ceramic\u003c\/strong\u003e — won't alter pH or leach into the water column.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003ctd\u003e5 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eInert ceramic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface area\u003c\/th\u003e\n\u003ctd\u003e2,250 m² per litre (approx. 11,250 m² total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNugget sizes\u003c\/th\u003e\n\u003ctd\u003eTwo, mixed in the pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBag\u003c\/th\u003e\n\u003ctd\u003eZip-top mesh bag, included\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\u003ePlacement\u003c\/th\u003e\n\u003ctd\u003eFinal stage of filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eFA69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e015561114592\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\n\u003cp\u003eFluval doesn't restrict Bio-FX to one model — it's sold as media for any canister filter or sump, and appears on Fluval's own site alongside the 07 Series (107\/207\/307\/407) and the FX4\/FX6 canisters. If your filter has a basket stage sized for loose media, this will fit; the mesh bag lets you portion it to whatever basket volume you have spare, so a single 5 L box will often span more than one filter's final stage over its life.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eRinse monthly in removed aquarium water, never tap water — chlorine and chloramine kill the bacteria colony living in the media. Replace roughly a third to a half of the charge every six months rather than the whole basket at once, so the colony re-establishes without triggering a mini-cycle.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for any freshwater or saltwater system running a canister filter or sump with a dedicated biological stage. Not a substitute for mechanical or chemical media — it doesn't remove floating debris or discolouration, so it belongs after your mechanical and carbon or chemical stages, not before them.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Fluval's standard consumer guarantee against manufacturing defects, in addition to your rights under Australian Consumer Law. Standard freight class, no special handling required.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eHow much do I need for a standard bioload?\u003c\/h4\u003e\n\u003cp\u003eFor an averagely stocked tank, filling one basket layer with Bio-FX is typically enough. Heavily stocked or messy setups benefit from devoting a full basket to biological media.\u003c\/p\u003e\n\u003ch4\u003eCan I mix Bio-FX with other Fluval ceramic media?\u003c\/h4\u003e\n\u003cp\u003eYes. It's designed to sit alongside BioMax or other porous ceramic media in the same basket — the two nugget sizes already give it some size variation on their own.\u003c\/p\u003e\n\u003ch4\u003eDoes it need to be cycled before use?\u003c\/h4\u003e\n\u003cp\u003eLike any new biological media, it starts without a bacteria colony. Add it to an established, already-cycled filter alongside existing media so bacteria can colonise it, or dose a bacterial starter at setup.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293293756707,"sku":"FA69","price":70.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-bio-fx-biological-med-10281432121635-1-dq.webp?v=1790372752","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-bio-fx-biological-media-5ltr-box","provider":"Nicks AOT","version":"1.0","type":"link"}