i just have a question about t5 lighting. i know for most lights the more watts per gallon the better, is it the same for t5? i know t5 is a stronger spectrum. my tank is a 37 gallon and i have a 65w pc light on there and i just added a dual t5 fixture with each bulb is approx 18watts. so that sufficient to run some easy corals like zooas, mushrooms and frogspawn