I had the sump for my old tank at 600gph and will probably do the same with the new one. If you push the water too fast through it you'll get all sorts of bubbles and the equipment just won't have time to do it's job. Too slow and it gets stagnant.
Also, I'd second the recommendation that if it's going to be an SPS tank, start it with montipora's and hardy acros. I read an article recently (can't remember where) that went so far as to recommend putting your rock, corals, etc. in MONTHS before adding a single fish. I'll see if I can dig it up again and post a link. but the logic was that it gives everything in the tank a chance to flourish without any predation at all.
Last edited by Slick Fork; 11-19-2008 at 06:41 PM.
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