Originally Posted by dallops_of_polyps
here is 50% of answers you don't need to feed them anything almost all plants are filter feeders(photosynthesis) For substrate anytthing from gravel to bold sand.(antonym for fine?)
I don't know where this information came from but it is false. Most plants are root feeders. Don't use sand. Sand will compact and frequent "stirs" are required, upsetting the plants roots. EcoComplete is one of the best plant substrate on the market. One can also use a gravel and flourite or laterite mix. Ratio should be 50/50 or so.
Plants, just like fish, need to be fed. For such a small tank, I would recommend our sponsor's product, pfertz. Good stuff and very user friendly.
CO2 is not necessary but is a nice touch. Good for the plants during the night cycle. Many low tech tanks do just fine without CO2 injection. Lighting, water quality, and fertilizing are the big deals. The addition of Flourish Excel will usually take care of the carbon end of the plants needs.