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View Full Version : GPH how much? An hour


stumpovrtyme
02/07/2011, 05:25 PM
how many times an hour should your tanks water turn over. I have a 90g. display a 55g. refugium and a 10g. sump what size pump should I be using.

RokleM
02/08/2011, 10:12 AM
Kind of an open ended question. Sump/tank turnover, most go for 3-5x tank volume or whatever you skimmer can handle. In tank flow varies drastically. SPS like a ton, softies and LPS like less. Rock design, directional pump vs wide spread flow, closed vs powerheads, etc all propose different solutions.