Im planning to begin planting my new 75g tank on the weekend and as this is my first time keeping plants im wondering if there's anything in particular I need to do. I want some form of Anuabis, vallisneria and a sword plant, are these ok? Also possibly some form of carpeting plant but I will add that later (suggestions for species are welcome). People often use co2 or root tabs and I was wondering if they are necessary or just extras? Any advice on keeping plants would be appreciated.