Currently I have a pc 260 watt fixture over my 55 gallon (about 5 watts per gallon). i want to upgrade and i really like the tek t5's. I want to get the 4 54 watt bulb fixture and that would give me about 4 watts per gallon. I was woundering since the t5's whould give me less watts per gallon than my pc is it really worth it? Do the individual reflectors make that much of a difference?