I have a single betta fish who was living in a small 2 gallon tank with a light. Something went wrong with the hood so I decided to replace the whole tank and bought a 1.5 gal. cube with a Whisper filter and light. Got it all set up and the fish transferred, and all was well.
Or so I thought.
The filter seems to be an over-achiever; the air pump is causing it to fill the tank with bubbles. The bubbles overflow the small filter and in no time at all, the entire surface of the water is COVERED with a mass of air bubbles. I have skimmed them off several times-the poor fish can't even eat with them there-but each time they come back. If I pinch the air hose off, the bubbling stops, and the water still flows freely; I thought I had found the soloution, and put a couple clothes pins on the hose, but I guess they aren't pinching it off enough, because STILL it bubbles.
Is there anything I can do to stop the bubbling madness? I am ready to take the damned filter out...the fish lived fine without one in the other tank. The thing is, I *like* the sound of the air pump. Any suggestions?