{"product_id":"bioscape-320l-h-hanging-filter-replacement-bio-balls-1-pack","title":"Bioscape 320L\/h Hanging Filter Replacement Bio Balls (1 Pack)","description":"\u003cp\u003e\u003cstrong\u003eGive your filter's bacteria more room to work.\u003c\/strong\u003e This is the biological-stage replacement media for the Bioscape Tropic \"Easy Clean\" 80 Hang-On Filter (320 L\/h, model BIS531) — sold as a one-pack of bio balls that host the colony of beneficial bacteria breaking down fish waste.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh surface area\u003c\/strong\u003e — the ridged ball shape gives beneficial bacteria far more area to colonise than a flat pad.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service life\u003c\/strong\u003e — biological media isn't a consumable in the same way as foam or carbon; it keeps working for months.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in fit\u003c\/strong\u003e — sized for the Easy Clean 80's cartridge slot, no cutting or trimming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal stage\u003c\/strong\u003e — sits last in the filter's three-stage cascade, after the mechanical and chemical media.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eBIS531C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarcode\u003c\/td\u003e\n\u003ctd\u003e9327975057695\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e1 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia type\u003c\/td\u003e\n\u003ctd\u003eBio balls (biological filtration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eBioscape Tropic \"Easy Clean\" 80 Hang-On Filter, 320 L\/h (BIS531), for aquariums of 38–75 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhich filter stage do I need?\u003c\/h3\u003e\u003cp\u003eThe Easy Clean 80 runs water through three stages in the one cartridge housing. Replace whichever stage is due, rather than the whole set:\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eStage\u003c\/th\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003cth\u003eWhat it removes\u003c\/th\u003e\n\u003cth\u003eTypical service life\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 — Mechanical\u003c\/td\u003e\n\u003ctd\u003eFilter foam (BIS531A)\u003c\/td\u003e\n\u003ctd\u003eSuspended debris and floating particles\u003c\/td\u003e\n\u003ctd\u003eRinse in tank water at each service; replace once it's compacting or breaking apart — as a general guide, every four to six weeks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 — Chemical\u003c\/td\u003e\n\u003ctd\u003eCarbon cartridge (BIS531B)\u003c\/td\u003e\n\u003ctd\u003eOdours, discolouration, dissolved organics\u003c\/td\u003e\n\u003ctd\u003eReplace on a schedule, not a rinse — as a general guide, every three to four weeks, once the carbon is saturated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 — Biological\u003c\/td\u003e\n\u003ctd\u003eBio balls (BIS531C)\u003c\/td\u003e\n\u003ctd\u003eAmmonia and nitrite, via colonising bacteria\u003c\/td\u003e\n\u003ctd\u003eLong life — rinse gently in tank water only, replace solely if physically broken\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for the Easy Clean 80 hang-on filter (320 L\/h, BIS531) in freshwater or marine aquariums of 38–75 L. Not suitable for the 160 L\/h or 450 L\/h Easy Clean models, or Bioscape's other filter ranges — the cartridge housings differ in size.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eRinse gently in removed tank water when you service the filter — never under a tap, and never with soap or detergent, both of which will kill the bacteria colony living on the media. Only replace the balls if they're visibly cracked or crumbling; healthy bio media should be left in place as long as possible.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-320l-h-hanging-filter-replacement-carbon-cartridge-2-pack\"\u003eBioscape 320L\/h Hanging Filter Replacement Carbon Cartridge (2 Pack)\u003c\/a\u003e — the chemical stage that sits ahead of this media.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-320l-h-hanging-filter-replacement-foam-6-pack\"\u003eBioscape 320L\/h Hanging Filter Replacement Foam (6 Pack)\u003c\/a\u003e — the mechanical prefilter that protects this media from clogging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Bioscape's standard consumer guarantees under Australian Consumer Law, in addition to any manufacturer warranty. Ships standard parcel post.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow often do I need to replace bio balls?\u003c\/h4\u003e\u003cp\u003eRarely. Unlike foam or carbon, bio media isn't meant to be changed on a schedule — leave it in place and just rinse it in tank water at each service, replacing only if it physically breaks down.\u003c\/p\u003e\u003ch4\u003eCan I run the filter without bio balls?\u003c\/h4\u003e\u003cp\u003eYou can, but you'll lose most of the biological filtration capacity — the foam and carbon stages don't host bacteria anywhere near as effectively.\u003c\/p\u003e\u003ch4\u003eWill this fit my other Bioscape filter?\u003c\/h4\u003e\u003cp\u003eOnly the Easy Clean 80 (320 L\/h, BIS531). The 160 L\/h and 450 L\/h Easy Clean models use differently sized cartridges.\u003c\/p\u003e\u003ch4\u003eDo I need to replace all the bio balls at once?\u003c\/h4\u003e\u003cp\u003eNo — to avoid a bacterial crash, it's safer to replace bio media gradually rather than all in one go, and only when it's genuinely deteriorated.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293065888035,"sku":"BIS531C","price":17.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-320l-h-hanging-filt-43179167351075.webp?v=1790234720","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/bioscape-320l-h-hanging-filter-replacement-bio-balls-1-pack","provider":"Nicks AOT","version":"1.0","type":"link"}