Compact, slow-growing Rotala (not an Ammannia), like a miniature Bacopa caroliniana; stem tips turn reddish under high light; good for nano tanks; medium light and CO2 needs.
Needs
Care levelModerate
LightMedium
CO₂Helps
GrowthSlow
HeightUp to 20 cm
Temperature22–28 °C
WhereMiddle of the tank
Feeds throughLeaves, from the water
FamilyLythraceae
Native toThe species Rotala indica: tropical and temperate Asia (Iran and Afghanistan to India, China, Korea, Japan, Indochina, Malesia and the Philippines); introduced in Italy, Portugal, California, Louisiana and Congo. The 'Bonsai' form is a cultivar of unknown wild origin.
Facts checked against sources on 16 Oct 2026. See sources
How to keep it
Medium to strong light (red tips at high light)
Some CO2
Plant in small groups and trim often; replant cuttings to thicken the group
Picture coming