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[rickjames]

Originally Posted by Invigor

holy crap!

I've got a friend that has 2-2" drains on his 360gal reef, he's got about 6000gph going thru it.

I think reef_raf has a 70gal with the same amount of flow..although he's got a barebottom and _i think_ uses powerheads to achieve higher flow.

'

Yup, he uses Tunzes as well. Maybe he can comment on the flow through isn't sump, I don't think it is much....