{"product_id":"fluval-co2-bubble-counter","title":"Fluval CO2 Bubble Counter","description":"\u003cp\u003e\u003cstrong\u003eA drop-in bubble counter that lets you count and set your CO2 injection rate at a glance.\u003c\/strong\u003e Fitted between the regulator and diffuser on a Fluval pressurized CO2 kit, it gives you a clear view of each bubble so you can dial in a consistent dose for planted freshwater tanks.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual dosing check\u003c\/strong\u003e — count bubbles per second to confirm your CO2 rate without guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Fluval's pressurized CO2 kits\u003c\/strong\u003e — a direct replacement or spare for the 45 g, 88 g and 95 g kits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps protect cylinder life\u003c\/strong\u003e — dialling in a moderate, steady rate rather than overdosing extends how long a cylinder lasts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eItem number\u003c\/th\u003e\n\u003ctd\u003eCO204\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e015561175500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eFluval Pressurized CO2 Kit 45 g, 88 g and 95 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater, planted tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCompatibility, spares and supersession\u003c\/h3\u003e\u003cp\u003eThis bubble counter is designed as a spare or replacement part for Fluval's three pressurized CO2 kit sizes — 45 g, 88 g and 95 g. It is not designed for Fluval's low-pressure Bio CO2 systems, which use their own bubble counter.\u003c\/p\u003e\u003ch3\u003eSetup, use and dosing\u003c\/h3\u003e\u003cp\u003eFit the bubble counter in the CO2 line between the regulator and the diffuser so bubbles are visible as they pass through. As a starting point, Fluval recommends around one bubble every 2–4 seconds for a moderately planted tank, which is also the rate that gets the most life out of a cylinder — at that pace, a cylinder typically lasts around 2–3 weeks. Increase or reduce the rate to suit your plant mass and CO2 drop-checker readings.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eClean periodically to keep bubble visibility clear. If you're running the diffuser this counter feeds, its ceramic disc has a working life of around 3–6 months and should be swapped when CO2 output visibly drops.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for\u003c\/strong\u003e freshwater planted tanks running a Fluval pressurized CO2 system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for\u003c\/strong\u003e Fluval's low-pressure Bio CO2 Pro systems, which use a different bubble counter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Fluval's standard consumer warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Ships standard parcel delivery.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this fit my Fluval CO2 kit?\u003c\/h4\u003e\u003cp\u003eIt's designed for the 45 g, 88 g and 95 g Fluval Pressurized CO2 Kits. It isn't designed for the low-pressure Bio CO2 Pro range.\u003c\/p\u003e\u003ch4\u003eWhat bubble rate should I run?\u003c\/h4\u003e\u003cp\u003eAround one bubble every 2–4 seconds is a reasonable starting point for a moderately planted freshwater tank, adjusted against your plant growth and CO2 drop-checker.\u003c\/p\u003e\u003ch4\u003eDoes a faster bubble rate mean more CO2?\u003c\/h4\u003e\u003cp\u003eYes, and it also drains your cylinder faster — Fluval's recommended rate is chosen to balance plant growth against cylinder life.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293290053923,"sku":"CO204","price":12.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-co2-bubble-counter-43180020891939.webp?v=1790234935","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-co2-bubble-counter","provider":"Nicks AOT","version":"1.0","type":"link"}