Wow you've got a lot of lights crammed in there
Thats pretty impressive just looking at the photos of the T5's alone. The XM bulbs look pretty yellow without the supplementation. I tried some XM's earlier this year but unfortunately one was white and one was yellow.
The tank is looking great, I see a lot of new corals in there (and not many of the old). Did I miss something or did you redo the tank?