I have a some hammer, candy cane, and favites doing great under 4 54w t5 ho's. My Trachyphyllia brain does not seem to be doing so good anymore, since I switched to the new lights. All my shrooms and zoos are reproducing under the new light. I also have a plate coral that is almost all white now, I think I bought it already on his way out. I used to use pc lights and the t5's are way nicer and run cooler.