Cool-water creeping stem plant with light green, kidney-shaped leaves; leaves are largest around 20 °C and shrink above about 24 °C. Good for coldwater tanks and unheated or cool tropical tanks.
Needs
Care levelEasy
LightLow
CO₂Helps
GrowthFast
HeightUp to 50 cm
Temperature18–23 °C
WhereMiddle of the tank
Feeds throughLeaves, from the water
FamilyBrassicaceae
Native toTemperate East Asia: southern Siberia and the Russian Far East, Mongolia, northern to south-central and south-eastern China, Korea, Japan
Facts checked against sources on 16 Oct 2026. See sources
How to keep it
Cooler water (best 18-23 °C)
Medium to bright light
Fertiliser; CO2 optional but boosts growth
Trim often if kept as a bush
Warm tanks (above about 24 °C leaves shrink; keep below 28 °C)
Picture coming