Thanks for all the comments.
It is a sumpless tank. I have the 4 modded PHs for flow and a cheap Prizm skimmer, which really doesn't do anything.
I love the modded PH. They push a good amount of flow, but if I had money I would buy the newer prop pumps they have.
My T5s are 2 ATI B+ for morning and evening and 1 UVL SA, 1 UVL to add some different spectrums. The halides are 175w Iwasaki 15ks.
I have 1 more ATI B+ and 1 UVL SA coming, so I can swap out the day and play with the spectrums a bit.
Dimensions are 48x18x18. I think. Not sure on the height right now.