I have a tall hexagon tank that doesn't have much surface area, I put a aerator in there that says it can aerate tanks up to 30g. I want to fill the tank up with 25-30 inches of fish, is this enough aeration?
True. I use an air pump that is stronger than I need and it easily powers stones in 4 tanks, including the hex tank that's on the other side of the room.. and need the gang valve to keep the bubbles from overwhelming the bettas in 3 of those tanks. It's just a pump from wally world, but those Tetra pumps seem to do pretty good.
The air pumps that we have seem to stay stable just sitting on the furniture. They have rubber pads on the bottom of them and are pretty quiet. actually, they're whisper pumps but a different model than luniyn's.