My boyfriend is super interested in heavily planted tanks, with carpets of low growing plants and then more scaped plants throughout. He keeps telling me I can't have more than two tanks, and currently have three, so I told him he can inherit my 5g to do a planted tank that he likes. I have low light, low maintenance plants in all of my tanks, but the plants that he is interested in when we go to my LFS would all require more light and CO2 than I have experience with. Do any of you have nano super planted tanks? What CO2 systems would you recommend with a small tank like that? I don't think he wants any fish in the tank so I don't know if that will impact it at all either. Pictures of your tanks are more than welcome!!