DR. moss Co2 Diffuser Glass Nano 20mm for Aquarium live plants - Moss Fern Plant Java Valve ATOMIZER Suction cup - Regulator Solenoid

using with co2 tank only, excluded a yeast bottle *The CO2 atomizer should be affixed on the tank bottom in order to get the best CO2 dissolve effect. *When CO2 atomizer to soak bleach water three minutes (will be recovered) then rinse it with tap water and reuse. High quality, high effciency, durable use. Spaceless, especial for small tank. Please soak this device in bleach water 15 minutes when its diffusion effect is lower than the new one. ?Rinse it with water and soak for 30 minutes. After that, atomizer will reach the normal function.