{"product_id":"fluval-fx4-fx5-fx6-bio-foam-2-pack","title":"Fluval FX4\/FX5\/FX6 Bio Foam 2 Pack","description":"\u003cp\u003e\u003cstrong\u003eThe fine second-stage foam that catches what the first pad lets through.\u003c\/strong\u003e Fluval's Bio-Foam+ (Fluval part A239) is a denser-pored foam sized for the FX2, FX4, FX5 and FX6 canister filters, sold here as a pair so you can rotate media at each service without leaving your filter short a pad.\u003c\/p\u003e\n\u003cp\u003eInside each pad is a tighter pore structure than the coarse first-stage foam, built to trap the finer particles a first pass misses while giving nitrifying bacteria a large surface area to colonise. It's doing mechanical and biological work in the same piece of foam, which is why Fluval stacks it as the second media stage in the FX range.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Fluval A239 media\u003c\/strong\u003e — sized to seat correctly in the FX-series basket without gaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-stage action\u003c\/strong\u003e — finer mechanical trapping plus a large surface area for beneficial bacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold in pairs\u003c\/strong\u003e — so you can replace one pad at a time and never strip your filter of established bacteria in a single service.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFresh and marine safe.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\n\u003cp\u003eFluval part number A239, our SKU FA142. Fits the \u003cstrong\u003eFluval FX2, FX4, FX5 and FX6\u003c\/strong\u003e canister filters. Confirm the model printed on your filter's motor head before ordering — it won't seat in filters outside the FX range.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePack quantity\u003c\/th\u003e\n\u003ctd\u003e2 pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGenuine part number\u003c\/th\u003e\n\u003ctd\u003eA239\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eFluval FX2, FX4, FX5, FX6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia type\u003c\/th\u003e\n\u003ctd\u003eFine-pore biological and mechanical foam\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\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable as the second-stage media in any FX2, FX4, FX5 or FX6 running a standard biological filtration setup. Not a substitute for the coarse first-stage foam block, which handles the larger debris this finer pad would clog on quickly if it worked alone — run both stages together.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eFluval's published FX6 maintenance schedule calls for rinsing bio-foam in tank water every 3 months, and replacing roughly half your bio-foam pads once a year rather than the full set at once — which is why it's sold as a 2-pack: replace one pad, keep the other seasoned, then swap the other at the next annual service. Never rinse in tap water or use soap; both kill the bacteria colonising the foam.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cp\u003ePairs with the \u003ca href=\"\/products\/fluval-fx4-fx5-fx6-foam-3-pack\"\u003eFluval FX4\/FX5\/FX6 Foam 3 Pack\u003c\/a\u003e as the coarse first stage, and the \u003ca href=\"\/products\/fluval-fx4-fx5-fx6-carbon-pads-2-pack\"\u003eFluval FX4\/FX5\/FX6 Carbon Pads\u003c\/a\u003e for chemical polishing.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Fluval's standard replacement-parts warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Standard freight.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat's the difference between this and the Foam 3 Pack?\u003c\/h4\u003e\n\u003cp\u003eThis is the finer, second-stage pad (Bio-Foam+, A239); the Foam 3 Pack is the coarser first-stage block (A228). Both run together in a normal FX-series setup.\u003c\/p\u003e\n\u003ch4\u003eHow often do I replace it?\u003c\/h4\u003e\n\u003cp\u003eRinse every 3 months, and replace roughly half your bio-foam pads once a year — this 2-pack lets you stagger that rather than replacing everything at once.\u003c\/p\u003e\n\u003ch4\u003eCan I rinse it in tap water?\u003c\/h4\u003e\n\u003cp\u003eNo — tap water's chlorine or chloramine kills the bacteria colonising the foam. Rinse in removed tank water only.\u003c\/p\u003e\n\u003ch4\u003eDoes it fit the FX2?\u003c\/h4\u003e\n\u003cp\u003eYes, Fluval lists this as compatible with the FX2 as well as the FX4, FX5 and FX6.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293291430179,"sku":"FA142","price":26.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-fx4-fx5-fx6-bio-foam-43180026167587.webp?v=1790234937","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-fx4-fx5-fx6-bio-foam-2-pack","provider":"Nicks AOT","version":"1.0","type":"link"}