I'm in the planning stages of doing a 6ft peninsula style tank. I've got two MP40's from my previous set up. Was planning to put both on one side of the overflow box to create a clockwise flow around the tank...the overflow is located on the end of the tank. Do you think this will be sufficient? If not, the tank has two returns so one thought was to run pvc up into the canopy and across to the end of the tank and put a nozzle point back toward the overflow.