Deb why not have those hagen powerheads that push around 900 gph, and have them plumbed in the sump with 1" clear flex hose and have a piece of 1/2" pvc with a few 90's to make it hang over the tank.
That os what Doug uses and i have had it rigged for my old 75 gal too with out a sump its very quiet and when i had my old 75 gal sps going there were no sump and i made a fake overflow with the PH plumbed from the over flow looked pretty cool
mike
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180 starfire front, LPS, millipora
Doesn't matter how much you have been reading until you take the plunge.
You don't know as much as you think.
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