I am thinking about taking my 72 gallon bowfront and converting it over to a freshwater planted tank. I am wanting to keep this natural low tech, no plans or interest in using CO2. The tank is 48 inches long and 23 inches high. The type of plants that I would plan on keeping would be low to moderate light plants. Currently I have two 24 t8 fixtures on the tank, but from the reading that I have been doing I don't think that this would be enough light. If my thinking is right I would be wanting to use a dual t8 fixture? From the research that I have been doing and different places that I have checked out online I can't seem to be able to find this type of fixture. Any suggestions on places to look at for these. Also I was thinking that if I could not find the dual t8 that maybe I could try finding a single t5 fixture would this work? I know that these fixtures have got to exist it just seems like I am not looking in the right places. Thanks.