Tank looks great, as do the lights. Good choice on sticking with the t5s. I had two 6' VHOs on my 180 to supplement my 400w MHs, and I switched to four 3' t5s. WOW, what a world of difference. The t5s were a little brighter, but the reaction from the corals said it all. All the corals colored up huge within a couple months, and I've never seen them look better. My coraline algae is growing like crazy. When I did the light switch, I had virtually none on the back of the tank, now about four months later, the back is completely covered in it.