I am starting up a grow out tank. It is a 36x18 frag tank. Right now I have an older radion G2 running on it, as I only have zoa's, paly's, and acans. I want to start looking at acros and other more demanding corals, and was wondering if it would be of value to change to an MH, a T5, or a combo of both, or is there just not enough value in terms for grow to switch from the G2?