My tank is 6' long x 3' wide x 21" high. How well do the Beamworks lights cover front to back? I tried a Marineland single bright 36" led on one half of the tank and most of the light was focused in the middle (front to back) of the tank. I currently have 2, single bulb 36" fluorescent light strips that cover all of the tank. Wondering if Beamworks spread the light out as well as fluorescent tubes?