I keep mostly crap plants that can either reproduce with speed or are neigh impossible to kill off. Cichlids trash em or turtles and Koi eat em.
Water Lettuce, Anacharis, Lucky Bamboo and Taro are usually good survivors. I have a few other odd fancy plants that someone gave me that are in my fry tank right now. Java moss I think it was called and something else too. I was surprised to see Lily Pads sprouting in my one turtle pond, so I may move them out somewhere safer to watch them grow.
I covet the Marimo balls, too but I'm sure they'd get destroyed by something so I haven't yet.