dmh41532
10/13/2015, 06:33 PM
I currently have two hydor evolution power heads for my 65 gallon mixed reef. I don't know the exact flow rate as I got them used, but I believe they are around 1300 gph. I know one needs replaced, as its losing strength. Several hobbyists told me that I should have 6000 gph, seems alittle high, but I picked up a power head that pumps 3100 gph. Both the new pump and the good evolution are clearly too much. How far from the top should I place this new pump? Currently I keep my pumps about 6 inches, pointed up.