So after looking at all my options and talking to my good buddy, I have decided to go with two reeflow Dart pumps connect to a heavy duty timer and have them come on oppisite of each other. Kinda like a wave timer. But much bigger and much more flow. The Dart flows 2820
gph at 4' head. I figure it will have about 1' or 2' at the most head. So it should flow more like 3000
gph. I figure that 3 or 4 returns for each pump. The timer would be programmed to go on and off randomly until the lights go off and than the pumps would shut down until the lights come back on.