So im currently running two ever-grow D120's over my 55. plenty of light i know. But heres the thing, im a zoa and LPS guy and from my understanding i T5's totally rock the growth of those two, especially zoas and palys. so i have a chance to buy a 2 bulb 48" T5 fixture for 20 bucks. Will two bulbs boost my growth a little? any suggestions welcomed!