I have a crappy lighting fixture. Only 1 T8 bulb. The T8 bulb is high intensity and a 50/50 but it still isn't that great at all. I only have one coral, a small frag of star polyps that I have placed as high as I could so they can stay closest to the light. I placed some tin foil behind the light to make it more reflective downwords. Was doing that pointless or will it help?