Hygrophila polysperma

Hygrophila polysperma is one of the hardiest aquarium plants available. It is particularly good for beginners because it grows in almost all conditions. It normally grows so fast that it is important to prevent it crowding out other plants. The shoots must be pinched out regularly. Leaves lying on the surface form small new plants. H. polysperma varies considerably in leaf shape and colour, depending to some extent on the light supplied.
Height: 25-40cm Width: 10-20cm Light: low-very high Temp.: 18-30'C
Hardness: soft-very hard pH: 5-9 Growth: VERY FAST Demands: VERY EASY

Text from Tropica www.tropica.com
Photo by Dusko Bojic