really, the sound of bubbles bother you???

[Essjay]

I used one of those when I had an air powered sponge filter in a betta tank. It worked very well without stressing the pump, as you say.

 

[gimme30]

really, the sound of bubbles bother you???​

Yes. Didn't used to, got old, now it does. I'll admit it's better than having to listen to the neighbor's dog barking constantly.