Note: The ozone machine cannot be used in water, only one ozone machine and ventilation pump can be used When the ozone generator is used alone, the air pump can be connected to the air inlet. An ozone generator is recommended for ventilation. 5-speed adjustment cycle Adjusting gears to clean and deodorize the aquarium The water quality before the ozone machine can be used continuously. When the water is clear, turn it off, and turn it on again when the water quality deteriorates. The ozone setting is adjusted and used according to the water quality. The water difference on the right is set to the maximum value, and the water difference in the middle is set to 5. In order to prevent backflow of the aquarium, it is recommended to place the ozone machine 20 cm away from the water level of the aquarium Ultra-quiet, high-efficiency, stable and durable; Use with air pump and air stone to increase the amount of dissolved ozone in water; Efficiently dissolve NO2 (nitrite), quickly deodorize