Only two days ago I tidied up my 22l nanoscape and trimmed the frogbit. Already the plant has put roots down to the bottom of the aquarium. This is a perfect plant for aquascapers and nanoscapers who want to set up a tank and get beautiful results, fast. The dirt (canal mud) underneath the sand substrate is giving the plant excellent nutrients in this lo-tech, no fertiliser, no CO2 aquarium