Feature: 1. PURIFY WATER QUALITY: The fish tank ozone generator uses ionization technology to generate ozone to cover and clean the fish tank, decompose nitrite, and create a healthy and clear water quality environment for the fish. 2. QUICK CONNECTION: Fish tank ozone generator cannot be used in water, it needs to be used with the air pump, just connect the hose quickly. In order to avoid water backflow, place it 7.8in above the level of the fish tank. 3. SOURCE CLEANING: Ozonizer releases high concentrations of active oxygen every minute, and actively decomposes odor formaldehyde nitrite, etc. Clean pollutants from the source, decompose and reduce to oxygen. 4. CONTINUOUS USE: Aquarium ozonizer can be used continuously, turning it off if the water is clear, and turning it back on when the water deteriorates. Continuously and effectively maintain the water quality in the fish tank. 5. ADJUSTMENT USE: It is recommended to use the ozone machine for ventilation, adjust according to the water quality, the water difference is adjusted to the maximum value on the right, and the water quality is generally adjusted to the middle value of 5. Specification: Item Type: Fish Tank Ozonizer Material: ABS, Stainless Steel Uses: Aquarium Ozone Machine Air Pump, Purifying Water, and Removing Algae Ozone Machine: Rated Power: 6W Ozone Amount: 120MG Air Pump: Rated Power: 12W Maximum Air Volume: 2 x 4.5L/Min. Package List: 1 x Fish Tank Ozonizer1 x Air Pump2 x Hose (Transparent and White Random)1 x Check Valve2 x Bubble Stone1 x Air Pump Manual