Noise might be a concern if it is under a stand in the middle of your living area but mine is in a remote sump in a utlity room so any noise is not an issue for me. Honestly though my return pump is louder than my RS135... the only anoying noise is the sucking from the airline.
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- Greg
90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2
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