Review on Stones Aquariums Diffuser Bubbler Hydroponics by Sonya Ray

For a long time I felt that my angelfish were probably being deprived of oxygen because they are breathing heavier than other angelfish I've seen on YouTube videos. I hesitated between buying these airstones and a fancy $12 jar that sticks to the top of the inside wall of the tank. Aerostone works in every way. I'd say it took about two hours to get it working on fish, so I'm happy with that. Maybe I'll buy an air hose valve/choke later because it reduces the gurgle which I'm sure the fish should be concerned about.