Players all know that water plants need professional cultivation lamps to provide light, and liquid fertilizers need to be added regularly to meet the nutrients required by water plants. However, CO2 is often despised by everyone, and even self-comforting “water plants can live without CO2” There is no denying that some aquatic plants can survive only by the CO2 contained in the fish tank without adding CO2, but many aquatic plants grow very slowly and even die when there is not enough CO2. The fish tank is a special small ecological cycle. The content of CO2 in the water is very low. The CO2 dissolved in the air is very limited, and it cannot provide sufficient CO2 for the growth of aquatic plants. The best way. 1. Color dial, you can see the safe area more clearly; 2. The material of our solenoid valve is upgraded, the service life is longer, and the design can be disassembled to reduce the failure rate to a lower; 3.Our solenoid valve is a 12V DC safety voltage, which can cut off
