I have been out of the game for bit. My basement is finally finished so its time to start the new tank. Its going to be a 125 aga tank inwall with drilled corner overflows. I am looking on keeping a mixed reef, but mainly softies. 75 gallon sump with a gravity return 20 gallon fung. EV 180 skimmer with a mag 7 with a alge turf scrubber on the overflow. Are 250 watt halides overkill for this tank? What kinda flow should I be running through the sump? And for flow in the tank closed loop or power heads on a wave maker?