That would be good for most lps and softies but not good for most nems, clams, sps etc. If you were looknig to get a lot of sps or something though i would reccommend mh lighting. WPG ratio rules arent a good thing to go by for corals. I have a 70 gallon w/ a 250 mh and two 65 cf actinics which gives me like 5.5 wpg which isnt a lot by some peoples ratios but i can keep any coral i please. I have a couple clams and some sps which are thriving.