I have one of these floresent lights leftover from my garage, it's 4ft long and 10 1/2 inches wide. I have a bunch of skinny (slightly bigger than a dime) sylvania 32 watt bulbs for it. I also have some fatter (between quarter and half dollar) superior lamp heavy duty F40T-12/xtra brite bulbs but I dont know the wattage(they don't say). Does anyone know the wattage of these? Will either of these work for my planted tank? I want to cut plexi glas or acrilic to fit the top of my tank then hang the fixture I have from the ceiling. I have a 50 gallon tank measuring 1ft wide, 4 ft long and 20 inches deep. I'm on a super tight budget and my two 2ft fixtures with 18inch bulbs aren't cutting it.