I hv 3 rbta , 1 gbta , 1 purple lta & 2 tube anemones under 8 tubes of T5s .. one of the rbta is in the tank for over 2 yrs already. All the rbta still hv the red colors, no bleaching as they stay within 1 ft frm the water surface.. the tubes & purple are on sand & still same color. All the anemones are growing and crowding out my lps. Soon will hv to gv or sell away my corals to convert to a total anemone tank hahaha. So i think t5 shd be ok. Btw may be trying the new LED light set soon to replace my ati power module. Hope the new product can replace the t5s effectively.