Calculating water turnover

f14peter

Member
as I once again don my FNG hat . . .
I understand that a tank should have water turnover somewhere around 20 x Capacity per hour, right? Am I correct in that includes all pumping, such as filter return, and any/all powerheads, anything moving/pumping the water around? Or have I confused this "water turnover" thing with something else?
Thus, for a 90g tank, we're looking at 1800gph total turnover. 600gph (give or take for headloss) filter return, I'd still need around 1200gph from PHs.
Would the pump for an in-sump skimmer be included in the equation? If so, I presume the actual figure would be less than pump rating and reflect actual skimmer flow-through.
 
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