I recently added a MP40 QD to my two regular MP40. I placed one of my old MP40 on the center back wall of my offset overflow tank that measures 72x18x29 150 gallons. This tank is bare bottom and sps only. I run all my mp40's at 100% reef crest. Is there such a thing as too much flow running them all at 100%? Your flow calculator seems to state so.


