I see in the Discus tank you have Anacharis. Its a good beginner plant. But that first tank you may have problems. Whats your lighting and substrate type? Are you using any fertilizers or C02?
I see a lot of different plants and I do not know if your tank can support certain ones. You don't want to be wasting your money buying up plants that will only die later. Thats the thing about planted tanks, you have to learn it first or else you throw away lots of money. I learned the hard way like this before. You gotta know your species of plants and whats needed to grow them. For you, I would stick with the easiest of plants. Stuff like anacharis, java fern, java moss, anubias, maybe some wisteria and some cryptocoryne plants.