I have a 55 gallon tank and I bought a 4' long Coralife Aqualight 4x65 watt Compact Fluorescent on Ebay for $134. New they are $300. You can't use a hood of any kind with this type of lighting system, it isn't designed for it. The light I got is considered a pretty nice light, look it up and see what you think. I bought the legs for it so it sits just above my tank. Looks good. Actually, there's a picture of my tank in my profile, but you can't see the light too well. I wasn't trying to photograph the light....lol.