I was thinking of replacing my MH lights with a pair of 15000K Kessil A150Ws. I have a 120 gallon (4x2x2), and I was wondering if two would be enough for LPS and soft corals, or should I get three? When I want to start adding SPS, would I need to add a third/fourth? Is 15000K the color I want for overall coral growth and color, or would 10000K be better?
Thanks