Feature: 1. IONIZATION TECHNOLOGY: Aquarium ozone generator uses ionization technology to produce ozone to cover the fish tank, decompose nitrite and restore clear water. 2. EFFICIENT: Fish tank ozone machine quickly solves the contaminants from the source, decomposing and reducing them to oxygen to continuously maintain the water quality in the tank. 3. REACTIVE OXYGEN: Aquarium ozone machine releases high concentrations of active oxygen every minute, actively decomposing odors formaldehyde nitrite and other harmful substances. 4. CONTINUOUS USE: Fish tank ozone pump can be used continuously. It can be turned off if the water is clear, and turned on again when the water deteriorates. 5. VENTILATION USE: Fish tank air purifier can be adjusted according to the water quality, usually to the middle value of 5. To avoid the backflow of fish tank water, put it more than 20cm/7.9in above the fish tank level. 6. HOSE CONNECTION: Aquarium ozone generator cannot be used in water, it needs to be used with an air pump, hose connection is sufficient. The water difference is adjusted to the right maximum to run. Specification: Item Type: Ozone Machine Material: ABS, Stainless Steel Use: Aquarium Ozone Machine Air Pump Water Purification, Algae Removal Ozone Machine: Rated Power: 6W Ozone Volume: 120MG Air Pump: Rated Power: 3.5W Maximum Gas Volume: 2 x 3.4L / Min . Package List: 1 x Ozone Machine1 x Air Pump2 x Hose1 x Check Valve2 x Air Bubble Stone1 x Air Pump Manual