Usage: Connect the CO2 air pipe connector to the air inlet, insert the air pipe tightly, place the refiner near the bottom of the water outlet, open the CO2 pressure reducing valve (please make sure to open the valve wider at first), and gradually adjust to the appropriate amount after bubbles start to appear. Instruction 1. When the refineris used for a long time and the moss affects useeffect, it can be soaked in the toilet cleaner for a period of time to recover. 2. Please use the refiner in conjunction with a check valve to prevent water back flow. 3. only for aquarium use. Don’t let children play with it.
