vass
Non-member
I recently upgraded to MH lights and am now trying to figure out if I need to change my flow rate. I have a 90 gal with a mag 9.5 sump return with about 5.5 feet to head hieght, one aquaclear 70 (400 gph) and two powersweep 216 (?) that put out 190 gph a piece. Does this sound like enough flow? If not suggestions would be nice on what to remove and what to add, thanks.