i have a 46bow with 36'' nova extreme 4x39w T5 ((2)460nm, (1)420nm, (1)10k daylight) and a 24'' Current 2x65w PC (Dual actinic, and dual smartpaq 1 tube 460nm and other is 10k) my tank looks great under that. all corals doing great and open better then ever under the T5's. Halides i believe would be to much for that tank and cause serious heat issues.