It's a 125 and 18" deep. As far as corals, it's purely softies, a torch and I just added a BTA.
I was thinking of adding some LED strips to increase the amount of lighting for growth and also because they would hardly take up any room. I've seen several LED strips on EBay, but I don't want to spend money on something that is hardly going to make a difference. As far as how much to spend, I'm looking to keep it cheap.