I've been gone from this Hobby since 2013 and my tank is sitting in the basement collecting dust! These new LED lights that are out on the market now , how many would be needed for a 60x18x24 . Do they make retro's for t5 ho ? are they any better than a t5 ho , I know the watts would be way lower but do they come in on a full spectrum for planting needs? I see Pet-co sells some at the stores will they be any go in the long run.