I believe Eheim canister filter do not sound loud when in operation. You could tilt the filter front to back and or side to side. Tilt one way at a time, likely a minute or so before changing to another direction.

I believe Eheim canister filter do not sound loud when in operation. You could tilt the filter front to back and or side to side. Tilt one way at a time, likely a minute or so before changing to another direction.
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