{"product_id":"fluval-bio-co2-pro-refill-pack","title":"Fluval Bio-CO2 Pro Refill Pack","description":"\u003cp\u003e\u003cstrong\u003eFluval Bio-CO2 Pro Refill Pack\u003c\/strong\u003e restocks the fermentation ingredients for your Fluval Bio-CO2 Pro low-pressure CO2 system. Each pack contains four Activator yeast sachets and four Booster tablets, pre-measured with high-quality German Champagne yeast plus stabilizers and nutrients for a clean, consistent CO2 supply. Just add sugar and water, and the reaction produces CO2 within about 24 hours to keep your planted tank thriving.\u003c\/p\u003e\n\u003cp\u003eIt fits every \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-bio-co2-pro-systems\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eFluval Bio-CO2 Pro System\u003c\/a\u003e (Models 125, 250, and 500). Pair your CO2 with the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-bio-co2-diffuser\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eBio-CO2 Diffuser\u003c\/a\u003e to disperse it and the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-co2-indicator-set\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eCO2 Indicator Set\u003c\/a\u003e to keep levels dialed in.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eWhat's In the Pack\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 8px;padding-left:20px;\"\u003e\n\u003cli\u003e4 x Bio-CO2 Activator yeast sachets (German Champagne yeast)\u003c\/li\u003e\n\u003cli\u003e4 x Bio-CO2 Booster tablets (stabilizers and nutrients)\u003c\/li\u003e\n\u003cli\u003eSugar is not included and is sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eDosing by Model\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eHow much of the pack each refill uses, and how long one pack lasts:\u003c\/p\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:0 0 8px;font-size:0.95em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f6f6f6;\"\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eYour system\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003ePer refill\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eSugar (separate)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003ePack lasts up to\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eBio-CO2 Pro 125\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e1 sachet + 1 tablet\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e1 cup \/ 240 g\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e4 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eBio-CO2 Pro 250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2 sachets + 2 tablets\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2 cups \/ 480 g\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eBio-CO2 Pro 500\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e4 sachets + 4 tablets\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e4 cups \/ 960 g\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e1 month\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eWhy the Bio-CO2 System\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 8px;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe low pressure.\u003c\/strong\u003e A gentle fermentation reaction, not a high-pressure cylinder, so it is easy and worry-free to run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast to start.\u003c\/strong\u003e CO2 begins flowing within about 24 hours of mixing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium yeast.\u003c\/strong\u003e German Champagne yeast with nutrients gives a steady, reliable output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-measured.\u003c\/strong\u003e No guesswork. Drop in a sachet and a tablet, add sugar and water, and go.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow to Refill\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 8px;padding-left:20px;\"\u003e\n\u003cli\u003eAdd the sachets and tablets for your model, shown in the chart above, to the reaction canister.\u003c\/li\u003e\n\u003cli\u003eAdd the matching amount of sugar (sold separately) and fill with room-temperature water to the fill line.\u003c\/li\u003e\n\u003cli\u003eSeal it and wait about 24 hours for fermentation to build pressure and start delivering CO2.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp style=\"margin:8px 0 2px;\"\u003e\u003cstrong\u003eDo I need to buy sugar?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eYes. Sugar is the fuel for the reaction and is sold separately. Use plain white table sugar in the amount listed for your model.\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 2px;\"\u003e\u003cstrong\u003eHow long does one pack last?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eIt depends on your system: about 4 months on a Bio-CO2 Pro 125, 2 months on a 250, or 1 month on a 500.\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 2px;\"\u003e\u003cstrong\u003eWill it work with my Bio-CO2 Pro?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eYes. This refill fits all Fluval Bio-CO2 Pro low-pressure systems, Models 125, 250, and 500.\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 2px;\"\u003e\u003cstrong\u003eFreshwater or saltwater?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eFreshwater planted tanks. CO2 injection feeds aquarium plants and is not used in marine or reef systems.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":48910549876955,"sku":"A8457","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_a7ead99f-2e12-4974-89a2-41402cf9f253.jpg?v=1782478189","url":"https:\/\/squeakysaquatics.com\/products\/fluval-bio-co2-pro-refill-pack","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}