At 4 watts per gallon and T5 lighting is awsome, you can keep all softies, zoas, shrooms, and some LPS.
1 of my 5 tanks is a 58 gal. I have shrooms, zoas, frogspawn, kenya tree, clam and a green monti cap under a 36 inch fixture with 2 x 96 watt bulbs. all is well and happy.