My First Tank Project I bought a 75gl tank last night and am picking it up in a little while. The ultimate goal is to have a reef tank, but I'll be starting out FOWLR. So I have a few questions. What size pump should I get? How many gph for a 75 gallon tank assuming I don't get any special needs fish? I've heard 6-10x gallons, 8-12x, and a couple of other theories. Second, I read somewhere that the total gph doesn't have to come from the main water pump. That I can have, say, 600 gph from the main pump and use power heads to make up around 300 more gph. Thoughts? edit: funny how you think of the next question just as you are hitting "submit". Third question: This is a used tank with some salt creep. Is dish soap and fresh water, rinsed thoroughly, ok for cleaning? It's a glass tank, if that makes a difference. I plan on cleaning it and then doing a leak test overnight.