wrote in message
ups.com...
I have a tenant living downstairs complaining that she can hear the
filter at night and it's bothering her. She sleeps directly below the
tank, and there is indeed a slight hummming. Would I be able to switch
off the filter at night from 10.30pm to 6.30am, or would this be a
major no no?

$$ That's not a great idea. The bacteria need the moving water for oxygen.

I have a 72 gallon freshwater tank, with a gravel and sand substrate
(no underground filter) and an AquaClear 110 filter.

$$ Aquaclears are generally very quiet. Can the impeller be worn out? You
can try replacing it with a canister. I have a Fluval that is all but dead
silent from a few feet away. For extra silence you can set it in a bucket
and surround it with old towels or those small toss pillows sold everywhere
these days. If worse comes to worse you can always move the tank to another
wall that wouldn't be right above her head.
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