Review on Pawfly 8-12 Inch Air Stone: Enhance Your Aquarium with Grey Bubble Stone Bar Bubbler Airstones by Craig Goodman

I use it on the back of a 15 gallon 24 inch hexagonal tank instead of a cheap printed and taped backdrop. A very spectacular moving wall of bubbles with an additional tank that is high and can be quite hypnotic if you stare at it for a long time. Each side of the hexagon is eight inches long and the stone fits perfectly between the corners. It oxygenates the water perfectly, I have bottom dwellers (plecos) and I've never seen them rush to the top to gulp air from the surface. The stone requires more air pump pressure to function properly as a bladder wall. I use it with a Tetra Whisper air pump for 100 gallon tanks and it really does the job. I use it for all three of my tanks and have completely removed the two smaller pumps. .