chrisoroe Posted August 28, 2016 Share Posted August 28, 2016 i have a 20 gallon reef tank with 10 gallon sump ii have a quest about powerhead place. I have 2 powerheads 1 is 420 gph and other is 240 gph. How should i set them up and what one should i have on the side with my return nozzle is on. I have the 240 on the return side was thinking of switching the 240 with 420 to return side. If anyone can help me with powerhead placement in my 20 gallon or have any ideasa let me know Link to comment
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