I get the Jenny potted at the nursery, and also hygrophilia difformis (isn't in the stores yet) and put them in the aquarium every year. Both change their leaves. The Jenny gets much smaller leaves and the difformis really transforms in the aquarium from round leaves to lacy leaves. Since they are not acclimated, I have to take them out every week and spray off all the dead leaves and roots for the first month or two while they conform to the water. So there is work involved to keep the tank from getting fouled with this method. But since I don't have a substrate, and don't like the look of pots in the aquarium, buying terrestrial plants and arranging them in the aquarium works well for me. I clean off the roots really well, and soak the whole plant in soapy water for a few min.s and then rinse and place in aquarium.
I forgot to mention that the oto's love to eat off the plants I bring in this way. There is something on terrestrial plants that otos go crazy eating.