I am getting back in to the salt thing again after a short break. I just purchased a 50 gal tank. Dimensions are 48"x13"w X 18"h. My wife loves the softies and I already have 1 dual T5. Would simply getting another T5 be sufficient to grow soft corals? I am getting ready to purchase another light, substrate, and a couple pieces of live rock and really don't want to have to drop a ton of money on lights.. Only helpful advice please.