FWIW, I beleive mwrager ran 4x 96 w on his 125g(72" long) for a while, and he had several anemones that did well in his system. He did upgrade his lighting to include 2x 250w mh recently, on top of his PC's. From what I have seen, there doesn't seem to be much of a difference as far as the anemones go (other corals yes, I have noticed a difference), maybe he will chime in and give the specifics.