I have a ten gallon tank that I would like to make a planted tank. The problem is, I just have the light that came with the tank kit. The light is an All-Glass Aquarium 20 inch fluorescent aquarium reflector (120 volt, 19 watt, 60 hz) with a 15 watt aquarium lamp bulb. I am assuming that this is in the low light range. I don't know much about lighting. I would like to get a better lighting system. Preferably one that can go over an open water tank and can provide light in the medium lighting range. Does anyone have any suggestions? I am on a budget so nothing too expensive.