Features: 1.IONIZATION TECHNOLOGY: Fish tank ozone pump uses ionization technology to produce ozone to cover and clean the fish tank, break down nitrites and restore clear water. Cannot be used in water, need to be used with an air pump, hose connection is sufficient. 2.CONTINUOUS USE: Aquarium ozone pump can be used continuously, turn it off if the water quality is clear and turn it back on when the water quality deteriorates. 3.PRINCIPLE: Release high concentration of active oxygen per minute, active decomposition of odor nitrite and other harmful substances, from the source to quickly solve the problem of pollutants, decomposition and reduction to oxygen, continue to maintain the water quality of the tank. 4.ADJUSTABLE USE: It is recommended to ventilate the use, adjust the use of water quality according to the water quality, the water difference is adjusted to the right side of the maximum value of the operation, the water quality is generally adjusted to the middle value of 5. 5.PRECAUTIONS FOR USE: In order to avoid the backflow of water in the tank, it is recommended to place the ozone machine above the level of the tank 20cm / 7.9in or more. Specification: Item Type: Fish Tank Ozone Machine Material: ABS, Stainless Steel Use: Aquarium Ozone Machine Air Pump Water Purification, Algae Removal Ozone Machine: Rated Power: 6W Ozone Amount: 120MG Air Pump: Rated Power: 3.5W Maximum Air Volume: 2 x 3.4L/Min Plug Type, Voltage: UK Plug 220V PackageList: 1 x FishTankOzoneMachine 1 x Air Pump 2 x Hose 1 x Check Valve 2 x Bubble Stone 1 x Air Pump Manual