So I have a 29 gallon tank that I want to put a few plants in.I do not want to fully plant it. I just want a few plants in it(about 4). What are some good plants that do not require alot of lighting? I have a 24 inch PHILLIPS 20 watt flourecent light for plants and aquariums. I read that it should be about 2 watts per gallon so I do not have so much lighting.