When I first switched from T5 to LED all my rics, yumas, and shrooms didn't like the light. I cranked the intensity WAY down (10%) and slowly ramped it up to 90% over a 12ish week period and everything worked out GREAT! Talk about colors POPING on some of the coral under the LED! The oranges, greens and red pop just like (but better) than they did under my T5 with a Fiji Purple in the mix.