Bacopa caroliniana comes from the United States, and is already for many years as an aquariumplant. The stems are 10-30cm high and is quite easily in the aquarium care.
Give this aquariumplant sufficient lighting. He further claims don't demand much. The growth is quite slow, but that has the advantage that he not side are pruned need to be. Cut stems may be in the substrate can be inserted to the plant to be increased. He is the best one to his right in a nice group.
Bacopa caroliniana is a strong aquariumplant that it almost always does well in the central zone. Plant the stems, ascending to the rear for maximum effect !