Current T5 stock bulbs are horrible in my honest opinion. The fixture is great, but replace the bulbs. Look into WavePoint 420nm actinic.
I had Current fixtures on my tank for a long time and once I swapped the stock bulbs out (I did 10K Coralife Daylights and a 420nm WavePoint actinics) it changed the entire look of the tank. 420nm actinics are more purple and not as bright as the more blue actinic. They make certain colors pop more in my honest opinion, help a little more with coral growth (I can attest to this first hand) and don't saturate the tank in "blue" lighting.
Honestly, swap out both the actinic and daylight. Look up some ATI T5HO setups. If you search for NYCbob's thread, he has a beautiful tank with T5's and he lists which ones he uses.