Lees Pet Products Ale12521 6-Pack Discard A Stone Disposable Air Diffuser For Aquarium Pump, Fine (2 Units (6-Pack))

2 pack. Airstones keep your fish healthy by allowing more oxygen to enter the water and improving water circulation. Plastic air diffusers for salt and freshwater aquariums of all sizes provide excellent aeration for use in under gravel and corner tank filters. Our plastic aquarium bubbler stones can also be used to create fine decorative bubbles.