Stressful filter?

[rosarouge]

It is an Aqueon. There is a very slight vibration and there might be a hum, but the sound of the air conditioner must be drowning it out. It's not loud enough to wake up my husband, who is an excruciatingly light sleeper.

[gbose]

If you can's baffle your filter and your betta is stressed out, then think or replacing filter. Tetra has (or used to have) a small 'Whisper' driven by an air pump -- just a trickle of flow.

If your betta is still stressed, than think of totallt abandoning filters -- you'll have to change the water a bit more often and maybe feed less, to reduce waste.

GB