{"product_id":"fluval-bio-co2-diffuser","title":"Fluval BIO CO2 Diffuser","description":"\u003cp\u003e\u003cstrong\u003eFluval Bio-CO2 Diffuser\u003c\/strong\u003e disperses CO2 into your planted aquarium as an ultra-fine mist for maximum uptake by your plants. A high-quality ceramic disc breaks the gas into tiny bubbles that dissolve quickly, while the clear acrylic body stays discreet in the tank. It pairs with the low-pressure \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-bio-co2-pro-systems\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eFluval Bio-CO2 system\u003c\/a\u003e (or a compatible low-pressure CO2 source) to give your plants the carbon they need for lush, healthy growth. German engineered, with two suction cups included. Choose the 125 for aquariums up to 125 L (33 US gal) or the 250 for aquariums up to 250 L (66 US gal).\u003c\/p\u003e\n\u003cp\u003eRound out your planted-tank routine with \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eplant supplements\u003c\/a\u003e and browse our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003elive aquarium plants\u003c\/a\u003e.\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;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 8px;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic disc diffusion.\u003c\/strong\u003e A fine ceramic membrane turns CO2 into a micro-bubble mist for fast, efficient dissolving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetter plant absorption.\u003c\/strong\u003e Smaller bubbles linger in the water longer, so more CO2 reaches your plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear acrylic body.\u003c\/strong\u003e Durable and low-profile, it blends into an aquascape.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy mounting.\u003c\/strong\u003e Two suction cups hold it wherever your flow is strongest.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGerman engineered.\u003c\/strong\u003e Precise, reliable diffusion built to last.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo sizes.\u003c\/strong\u003e Matched disc sizes for small and larger planted tanks.\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;\"\u003eChoose Your Size\u003c\/h3\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;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eFits aquarium\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eCeramic disc\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eDiffuser body\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;\"\u003e125\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eup to 125 L \/ 33 US gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e12 mm (0.47\")\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e27 mm dia, 38 mm tall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e250\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eup to 250 L \/ 66 US gal\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e17 mm (0.66\")\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e32 mm dia, 40 mm tall\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;\"\u003eHow to Use\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 8px;padding-left:20px;\"\u003e\n\u003cli\u003eMount the diffuser in the lower half of the tank, in an area with strong water movement so the CO2 mist spreads evenly.\u003c\/li\u003e\n\u003cli\u003eConnect the inlet tube to your low-pressure CO2 source, such as the Fluval Bio-CO2 system.\u003c\/li\u003e\n\u003cli\u003eRun CO2 during daylight hours when your plants photosynthesize. It is not needed after lights-out.\u003c\/li\u003e\n\u003cli\u003eRinse the ceramic disc every so often to keep the mist fine as mineral buildup collects.\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;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 8px;padding-left:20px;\"\u003e\n\u003cli\u003e\n\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: the low-pressure, fermentation-based CO2 source this diffuser is built for\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003ePlant supplements\u003c\/a\u003e: liquid ferts to complete your planted-tank routine\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eLive aquarium plants\u003c\/a\u003e: the stems, carpets, and rhizome plants that thrive on added 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\u003eWhich size do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eMatch the model to your tank volume. The 125 suits aquariums up to 125 L (33 US gal); the 250 handles up to 250 L (66 US gal) with a larger disc for more mist.\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 2px;\"\u003e\u003cstrong\u003eDo I still need a CO2 source?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eYes. This is the diffuser only. It connects to a low-pressure CO2 supply such as the Fluval Bio-CO2 system.\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 reef or marine systems.\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 2px;\"\u003e\u003cstrong\u003eWhat comes in the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eThe clear acrylic ceramic-disc diffuser and two suction cups.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"125","offer_id":48935063060699,"sku":"A8476","price":19.99,"currency_code":"USD","in_stock":true},{"title":"250","offer_id":48935063093467,"sku":"A8477","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_9a96417e-3bd4-4b50-bfc3-3b1b6e427fcf.jpg?v=1783000381","url":"https:\/\/squeakysaquatics.com\/products\/fluval-bio-co2-diffuser","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}