Feature: 1. [Ionization Technology] Fish tank ozone machine uses ionization technology to produce ozone to cover the fish tank, decompose nitrite and restore clear water. 2. [Use With Air Pump] Ozone machine can not be used in water, need to use with air pump, hose connection can be used to continuously maintain the water quality in the tank. 3. [High Concentration] Release high concentration of active oxygen every minute, active decomposition of odor formaldehyde nitrite and other harmful substances, from the source to quickly solve the pollutants. 4. [Can Be Used Continuously] Ozone machine can be used continuously, if the water is clear, you can turn it off, and then turn it on when the water quality deteriorates. 5. [Ventilation Use] It is recommended that the ozone machine ventilation use, ozone machine according to the water quality to adjust the use, decomposition reduction to oxygen. 6. [Numerical Adjustment] When the water quality is poor, adjust to the right side of the maximum value to run, the water quality in general, adjust to the middle value of 5. 7. [Placement] In order to avoid the backflow of water from the fish tank, it is recommended to place the ozone machine above the level of the fish tank more than 20cm/7.9in. Specification: Item Type: Aquarium Fish Tank Ozone Generator Material: ABS, Stainless Steel Uses: Water Purification, Algae Removal Ozone Pump: Rated Power: 6W Ozone Volume: 120MG Air Pump: Rated Power: 12W Maximum Air Volume: 4x4L/Min. Package List: 1 x Ozone Machine1 x Air Pump2 x Hose3 x Check Valve2 x Suction Cup2 x Adjustment Valve2 x Nano Disk1 x Air Pump Manual