Description Just add citric acid, baking soda and water to the bottle, which can produce carbon dioxide. The plant’s metabolic rate can be increased rapidly, creating the best growing conditions for fish. It is the best choice for making CO2 equipment at home. Features: Professional CO2 generator system with stainless steel bottle, better than simple carbon generators. plastic. It is more reliable, stable, durable and efficient. The safety valve will automatically open when the pressure exceeds the safety pressure. Bubble counter with check valve : indicator of the flow of CO2 and preventing the return of water in the regulator. A large quantity of CO2 can cause the death of fish. It is recommended to reduce the volume of CO2 at the beginning, 1 or 2 bubbles per second. One time reaction may last 3-4 weeks. Any problem, please contact our store without hesitation. Honor to serve you! Specification: Name: CO2 Generator System Main Material: Stainless Steel Main Color: Silver 1 size