Cardamine lyrata is actually a marsh plant from Japan. But it is also a familiar aquarium plant which thrives under water with 20-50 cm long stems. A characteristic trailing growth form makes it highly decorative, and ‘aerial’ roots often form on the plant itself.
Plant it in groups, and make sure the water temperature does not exceed 28 degrees C (this makes the leaves much smaller and the plant more leggy). Also suitable in garden ponds in the summer. 
 
Plant info
Type:
Stem
 
Origin:
Asia
 
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 :
Medium
 
A medium need in CO2 is 6-14 mg/L. A high demand in CO2 is approx. 15-25 mg/L.