125 gallon tank with 30 gallon sump, sump has two 10x12 inch screens lit on one side each with 200 watts of led . System is only 120 gallons in all with rock and marine pure blocks in the sump . Reactor running 7 to 8 tablespoons charcoal every two weeks . Today I took protien skimmer off line corals seem to be more puffy . Will keep an eye on peramiters. 3 165 watt black box's. Whites 35% blues 90% 18 inches above tank.