There are only few aquarium plants as robust and undemanding and grow as well. Light intensity does not play an important role for its growth. Under less intensive light, the plant grows slower and develops smaller leaves, though. Its nutrient requirements are easily satisfied, too. Water hardness has no influence whatsoever on its growth rate. It doesn’t require any CO2 injection, either. In a nutshell: Hygrophila polysperma is the perfect plant for beginning aquarium keepers.