What are the dimensions of the tank? The length determines what size fluorescent tubes you would need. The height determines how much each fluorescent, or other lighting, will light up the substrate. And, the front to back depth determines whether you need only one strip of light or more than one to cover the whole substrate.
This is a tank that the FishNeedIt, 2 bulb T5HO light will work very well on. That is: http://www.fishneedit.com/t5ho-24quo...quarium-l.html With that light sitting right on top of the tank you should get around 35 micromols of PAR, so use of CO2 would be optional. Use the legs with that light and the PAR drops to 25-30 micromols, which would be ideal for a non-CO2 tank. Just be sure to get bulbs that are 6400-10.000K color temperature.