Ah ok, are you doing a home made filter? I am thinking about getting a spare ten and putting all of my aquatic plants that I use in my vivs. Kind of like a holding/growing tank. But I wouldnt mind making it look nice, maybe even a 20 gallon. All of my lighting is dual t5 fixtures, so I think that will be sufficient.
I am trying to get my r/o unit hooked up also, so I can stop buying it for $0.50 a gallon at manhattan aquarium. Are you in college?