Hello! I have various live plants in my Pachytriton tank. The water in my area is relatively hard, and I've found that Anubias, Elodea, and even Hygrophila species will do well. Currently, my tank also contains java fern and Bolbitis finger fern (which does not tolerate any jostling or moving well, but is otherwise a favorite with my newt). Because my 20L aquarium is half-filled with water, I also have some type of lily and a piece of a common houseplant (I'm pretty sure it's a Pothos species) that grows like mad to the point that it has pushed its way out of one of the hood holes and is growing up my wall.