Hygrophila polysperma from South-East Asia is one of the hardiest aquarium plants available. Stems becomes 25-40 cm and 4-8 cm wide.
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.
Hygrophila polysperma varies considerably in leaf shape and colour, depending to some extent on the light supplied.
Country or continent where a plant is the most common. Cultivars arise or are bred in cultivation.
Growth rate: High
Growth rate of the plant compared to other aquatic plants.
Height: 20 – 30+
Average height (cm) of the plant after two months in the tank.
Light demand: Low
The average or medium light demand of an aquarium plant is 0,5 W/L.
CO2 : Low
A medium need in CO2 is 6-14 mg/L. A high demand in CO2 is approx. 15-25 mg/L.