😁👍Does it really bother you? Is the air-pump not stable and-- making a hum or vibration-- because it needs to be put on a piece of styrofoam or other stabilizing surface? I have air pumps in all 4 of my fish-tanks in my den and can barely hear them.
Edit: I meant to attach this to OP's post but, it tagged you instead @Plinkploop. Obviously this question is for @Bent17