Features: Our Upettools Nano disc air stone is very smooth and exquisite, not like other poor quality air stone touch rough.The air diffuser area produces small & dense bubbles quietly, super sturdy and durable. Package Includes: 35mm Nano air disc stone,1 control valve,2 suction cups(Please note: the deeper the nano-disk is placed in the fish tank, the gas pump watts may need to be increased to drive) . Easy to Clean: Please soak me in the water, gently brush the dirt on the surface with a brush, dry in the sun for half a day, and you will get a new perfect mano bubble stone. Range of Use: Office, fish tank, decoration, hydroponic environment. Freshwater and saltwater can do. Healthy and beautiful environment: The air volume of this nano aquarium bubbler can be adjusted by the control valve. High Dissolved Oxygen Rate: Compared with ordinary bubble stone, the nano bubble stone emits more bubbles, and the gas and the water surface are more widely contacted, which makes the dissolved oxygen amount larger. Features: Our Upettools Nano disc air stone is very smooth and exquisite, not like other poor quality air stone touch rough.The air diffuser area produces small & dense bubbles quietly, super sturdy and durable. Package Includes: 35mm Nano air disc stone,1 control valve,2 suction cups(Please note: the deeper the nano-disk is placed in the fish tank, the gas pump watts may need to be increased to drive) . Easy to Clean: Please soak me in the water, gently brush the dirt on the surface with a brush, dry in the sun for half a day, and you will get a new perfect mano bubble stone. Range of Use: Office, fish tank, decoration, hydroponic environment. Freshwater and saltwater can do. Healthy and beautiful environment: The air volume of this nano aquarium bubbler can be adjusted by the control valve. High Dissolved Oxygen Rate: Compared with ordinary bubble stone, the nano bubble stone emits more bubbles, and the gas and the water surface are more widely contacted, which makes the dissolved oxygen amount larger. Specification: Sizes: 1.38 inchWeight: 1.76oz/50g Compatible air pump wattage: 1.5-3WOutlet size：It can be compatible with airline of 4mm. Specification: Sizes: 1.38 inchWeight: 1.76oz/50g Compatible air pump wattage: 1.5-3WOutlet size：It can be compatible with airline of 4mm. Note: If only a small amount of air bubbles are generated after the correct installation is completed, please turn off the air pump and then turn on the air pump. The deeper the nano-disk is placed in the fish tank, the gas pump watts may need to be increased to drive. We suggest to clean the disc once a month. Don’t put it under aquarium light to avoid moss. If want to create beautiful and fairy bubbles wall, please buy 2 or more different size of air stones. Note: If only a small amount of air bubbles are generated after the correct installation is completed, please turn off the air pump and then turn on the air pump. The deeper the nano-disk is placed in the fish tank, the gas pump watts may need to be increased to drive. We suggest to clean the disc once a month. Don’t put it under aquarium light to avoid moss. If want to create beautiful and fairy bubbles wall, please buy 2 or more different size of air stones. 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