OsAtNb Aquarium Air Stone Set, Fine Bubbles, Diffuser, Oxygenation, Decoration, Medaka, Guppy, Arowana, Cichlid, 2.0 inches (5.08 cm)

[4 FREE ACCESSORIES INCLUDED] This airstone set includes 5.1cm/2" nano airstone, 200cm/78" air pipe, 1 control valve, 1 check valve, 1 suction cup, but air pump is not included [High Dissolved Oxygen] The upgraded version of the airstone produces small bubbles that produce twice the dissolved oxygen rate in the tank water, creating a wonderland in your aquarium [Applications] This nano bubbler is quiet and durable, suitable for shrimp, fish, cichlids, carp, and a variety of aquariums up to 50 gallons Easy to Use and Install: Suitable for fresh and salt water, this nano bubbler is heavy enough to stay on the bottom and is powered by an air pump with a wattage of over 2W Warm Tips: 1. Cleaning Tips: Clean the disc algae and greens once every 3 weeks to prevent holes from blocking. 2 If you place an air stone in water above 40cm/ 15.75", please use a larger wattage air pump to drive it