Best way to diffuse the CO2 into planted tanks! There is no CO2 loss in this system. Inside the reactor, the CO2 bubbles are broken down constantly until they´re completely dissolved into the water. When using regular (ceramic plates) diffusers, there is loss when the CO2 bubbles reach the water surface. CHARACTERISTICS: The most efficient application of CO2 dissolution. The patented impeller design completely crushes the CO2 bubbles. Compact in size, and used externally. Durable to acidity and impact resistant. Designed to prevent CO2 gas from collecting at the top. Electricity is not required, since it uses the flow of water from the filter. Easy to clean and simple to maintain.