I have a 55gal with the standard two fluorescent tubes that came with the aquarium. I would like to grow some carpet type plants but there seem to be so many lighting choses. The Nova w/ 4-54 watt T-5's, Orbit and Coralife w/ 4-65 watt compact fluorescent bulbs. Metal Halide not in my current budget. What is the main differance in compact fluorescent bulbs and standard fluorescent bulbs? Will 260 watts be to much light, and will the jump in light output cause my tank to become an algae factory? I have C02 injection so I would like an increase in plant growth. Any lighting suggestions would be great.