Are these things really necessary? Im getting tired of bubbles bursting everywhere. In an open top aquarium with a power filter, is there enough gas exchange?
No, You will have plenty of gas exchange with a HOB power filter. The bubles are useless unless you like the way it looks. I think it looks unaturall and have never understood why people insist on using them. I guess thats just how some people like there tanks that way with pink gravel and sponge bob oraments.travisurfer said:Are these things really necessary? Im getting tired of bubbles bursting everywhere. In an open top aquarium with a power filter, is there enough gas exchange?
shaunakadub said:Yea I've heard they are useless most of the time, but I have 2 reasons for using one:
1.) I'm slightly over-stocked, so I want to make sure there is plenty of air in the tank.
2.) My cory's LOVE the airstone. They'll go to it, ride the bubbles up, rinse and repeat =p