I have recently been wondering if this light that I paid an arm a leg and a kidney for is enough power for my tank. I have a 75 gallon tank loaded maybe 65% high with live rock. In there are a number of sps corals, lps corals, Zoa's, a clam and fish. I am planning on loading it up pretty good with corals. Do you think that this light is enough for what I am doing or do I need more power??? I really would like to hang 2X400watt 20K light hoods down the road sometime. My question really is, do I need to go there and spend that money or is what I have really good and I should keep it?