180 gallon filtration question/ quieting pump
 

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I currently have a 180 gallon aquarium with a few oscars, jack dempseys, and silver dollars. The tank has been setup for a few years and stays clean and the fish are healthy but my question is about changing the filtration.

The tank has 2 built in overflows and returns and I have a wet dry filter with an external air cooled pump. I also have a hang on the back marineland emperor biowheel 400 and 2 emperor biowheel 280's for supplemental filtration.

My only reason for wanting to change is the external air cooled pump is too loud and i'm trying to keep the noise to a minimum. Any suggestions on a high volume external air cooled pump, or submursible pump. Or any other suggestions would be appreciated.

Thanks
JK

Quiet One Pumps are suppose to be very quiet and they received a great review, you can check it out at http://www.drsfostersmith.com. Hope this helps!