So you're saying that your powerhead is putting bubbles into the water as a result of an airhose you have added which is used to put bubbles into the water?
I'm a bit confused. If you're using an airhose isn't the whole point is to add air to the water resulting in bubbles?? If you don't want the bubbles, don't use the air hose. A couple of powerheads should be able to keep the water moving enough so that there is oxygen exchange on the surface of the water.
Christy
