Dramatic I know... But over the top? Not really.
So I bought a 2-10i Tetra Whisper Internal Filter, and its is making this barely audible humming/buzzing noise! And I don't know why, when I originally put it in ( this afternoon 1pm central US time) I also did a 75% water change. And during this change it was silent, and silent for about a half hour...
I'm now thinking as I type this that my DIY cover ( clear plastic with plastic mesh in the middle for ventilation/ feeding port) May be vibrating?
If not I don't know why it would be making this noise. Its right by my bed and I'm the kind of sleeper that could sleep through extremely loud noises but buzzing ( alarm clocks, cars backing up, etc...) will wake me up.
Is this normal or did I buy a defected one?