I'm in the process of converting my 75 gallon freshwater tank to a reef tank and am in need of a pump recommendation for my 40 gallon sump. I'm using the CPR CS100 overflow (800 GPH
) and from reading past topics, I know that my pump should not return more than 800 GPH
back to the tank. The tank is exactly 4 feet above the bottom of the sump.
Will the Mag Drive 9.5 (800 GPH
at 4') be okay? I.e., will it end up returning more water than the overflow delivers to the sump? I had hoped to find a pump that was rated at 750 GPH
at 4', but such a pump does not appear to exist.
Thanks in advance for the help.