Co2 you don't need it. Just stick with the easier low light plants and you'll be find. Led lights seem to be coming on strong in the planted tank world now so Finnex is what brand I use. Snails I'm not a big fan of so I make sure I don't have any in my tank. As far as fertilizers you just need one that would cover a broad spectrum for ya. If your going with sword plants you will need root tabs since they are heavy root feeders. Everything thing else will get it nourishment through the water column. Seachem makes good fertilizers and whatever you would need for a planted tank.
