thewizzrd
Member
Ok, I know that the rule of thumb is that you are supposed to turn over your tank between 8-10 times an hour. My question is what about teh sump? DO you include that when calculating. For instance, if you have a 125g tank you would want to get a pump around 800gph-1200gph. but what if you have a 55g sump included in that? Would you want to add that in too? Making it like 1400gph-1800gph? or does that not really matter? What do you think?