{"product_id":"diy-aquarium-co2-generator-system-kit-fish-tank-reactor","title":"DIY Aquarium CO2 Generator System Kit – Fish Tank Reactor","description":"\u003cp\u003eTransform your planted aquarium into a lush underwater garden with this \u003cstrong\u003eDIY Aquarium CO2 Generator System Kit\u003c\/strong\u003e. Designed for freshwater fish tanks and aquatic plant enthusiasts, this carbon dioxide reactor kit delivers a steady, controllable supply of CO2 to supercharge plant growth, improve water clarity, and create a thriving aquatic ecosystem — all without expensive refillable cylinders.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Your Aquatic Plants Need CO2\u003c\/h2\u003e\n\u003cp\u003eCarbon dioxide is the primary building block of photosynthesis for aquatic plants. A stable CO2 supply encourages faster, denser plant growth, outcompetes algae for nutrients, and supports healthier fish by maintaining stable water chemistry. This DIY kit lets you generate CO2 on demand using simple, widely available household ingredients (citric acid + baking soda + water — \u003cem\u003ematerials not included\u003c\/em\u003e).\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Valve:\u003c\/strong\u003e Available with either a stainless steel valve or an aluminum alloy valve, both with surface oxidation treatment to effectively prevent long-term corrosion and extend service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Safety Valve:\u003c\/strong\u003e Automatically opens when internal pressure exceeds the set maintenance threshold, keeping your setup safe and reliable at all times.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicroporous Filter Element:\u003c\/strong\u003e Acid- and alkali-resistant filtration screens out impurities from the generated gas before it enters your aquarium, ensuring only clean CO2 reaches your plants.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Gauge (0–50 kg\/cm²):\u003c\/strong\u003e At-a-glance monitoring so you always know your system's output level.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree Spare Seals Included:\u003c\/strong\u003e Replacement seals are bundled in the box so you can maintain an airtight system even after extended use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Injector Included:\u003c\/strong\u003e Simplifies refilling the reaction chamber without disassembling the unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Capacity Support:\u003c\/strong\u003e Compatible with both 1 L and 2 L reaction bottles (bottles not included).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Mixing Ratios (Materials Not Included)\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 L bottle:\u003c\/strong\u003e 150 g citric acid + 150 g baking soda + 200 g water\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2 L bottle:\u003c\/strong\u003e 300 g citric acid + 300 g baking soda + 400 g water\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy + Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure Gauge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50 kg\/cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplicable Bottle Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 L, 2 L\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × CO2 Generator (carbon dioxide reactor unit)\u003c\/li\u003e\n  \u003cli\u003e1 × Sealing Gasket (spare)\u003c\/li\u003e\n  \u003cli\u003e1 × Water Injector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eLearn More About Planted Aquariums\u003c\/h2\u003e\n\u003cp\u003eFor guidance on aquatic plant care and water quality management, visit the \u003ca href=\"https:\/\/www.epa.gov\/watersense\/how-we-use-water\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Environmental Protection Agency's water resources page\u003c\/a\u003e for general water quality information relevant to home aquatic environments.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What materials do I need to operate the DIY aquarium CO2 generator system kit?\u003c\/h4\u003e\n\u003cp\u003eA: You will need citric acid, baking soda, and water — none of which are included with the kit. For a 1 L bottle, use 150 g citric acid, 150 g baking soda, and 200 g water. For a 2 L bottle, use 300 g citric acid, 300 g baking soda, and 400 g water. Both sets of materials are easily found at grocery or hobby stores.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this CO2 generator kit safe for use in a fish tank with live fish?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, when used as directed. The built-in safety valve automatically releases pressure if it exceeds the safe threshold, and the microporous filter element removes impurities from the gas before it diffuses into the aquarium water. Always monitor CO2 levels and ensure adequate surface agitation to maintain healthy dissolved oxygen levels for your fish.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What bottle sizes are compatible with this aquarium CO2 system?\u003c\/h4\u003e\n\u003cp\u003eA: This kit is compatible with standard 1 L and 2 L plastic bottles (sold separately). Choose the size based on your tank volume — a 2 L setup will generate CO2 for a longer period before needing a refill.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long does one batch of CO2 mixture last in this generator?\u003c\/h4\u003e\n\u003cp\u003eA: Duration varies depending on your ambient temperature, the ratio of reactants, and the output valve setting. In general, a well-mixed batch can provide a steady CO2 supply for several days to a couple of weeks. Warmer temperatures accelerate the reaction, while cooler temperatures slow it down.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the stainless steel valve version and the aluminum alloy valve version?\u003c\/h4\u003e\n\u003cp\u003eA: Both valve types undergo a surface oxidation treatment to resist corrosion effectively. Stainless steel valves offer slightly higher corrosion resistance, while aluminum alloy valves are lighter. Both versions feature the same safety valve, microporous filter, and included spare seals and water injector.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What materials do I need to operate the DIY aquarium CO2 generator system kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"You will need citric acid, baking soda, and water — none of which are included with the kit. For a 1 L bottle, use 150 g citric acid, 150 g baking soda, and 200 g water. For a 2 L bottle, use 300 g citric acid, 300 g baking soda, and 400 g water. Both sets of materials are easily found at grocery or hobby stores.\"}}, {\"@type\": \"Question\", \"name\": \"Is this CO2 generator kit safe for use in a fish tank with live fish?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, when used as directed. 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