I pulled bacopa out of my pond and buried them in my tank just pulled the leaves off and put it in. they are growing better than any other plant.. growing heaps of new shoots and they are completely under water.
That looks like the kind of plant you can just pinch off if it gets too tall and replant the piece somewhere else. The remainder where you pinched will grow two new growths from the pinched spot. These are very prolific.
careful with that stuff, at pne point it completely overran my tank. It was kinda a pain but now I kinda regret pulling it out because, hey, another plant species in the tank, that's always good.