I have a large, home built stand, and I wanted to put a 20g inside it, inline with the Dt (30g). Anyway, I wanted to make sure, a Mag 5 would do the trick for lifting the water back to the tank right? Also, with 4x24 T-5s by Finnex, what corals could I keep? Could I keep monti caps in this light? What about some LPS?