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I agree, Using a moderate return pump should be adequate. I have 1000gph for my return in my 54 gallon tank and sure its good flow but the 2.5 inch overflow is way to loud. I would go with additional power heads in the tank for flow in addition to a pressure rated pump for your return.
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THE BARQUARIUM:
55 gallon cube - 50 lbs LR - ASM G3 skimmer - 30 Gallon sump - 22 Gallon refugium / frag tank - 4x 24 watt HO T5's - Mag 9.5 return - Pin Point PH monitor - 400 watt XM 20K MH in Lumenarc reflector - Dual stage GFO/NO3 media reactor - 6 stage RODI auto top up -Wavemaster Pro running 3 Koralia 2's.
Fully stocked with fish, corals and usually some fine scotch
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