Hello everybody. I am going to be doing a 30gal. SPS/LPS tank here in the near future and I want to ask if a single 150watt MH would be ok by itself? I want to know how a single 250 MH would do? Or do you think IO would need to have two 150's or 250's? I want to stick with MH on this tank because I like MH better than any other light. Nothing against other light, I just like MH.