Ambulia
Limnophila sessiliflora
Also known asAsian ambulia · Dwarf ambulia · Limnophila indica (sometimes confused)
Water parameters
Light and nutrients
Substrate type: inert ok. Propagation: stem cuttings.
Substrate compatibility
| Substrate | pH effect | Nutrient load |
|---|---|---|
| Inert sand (Pool filter sand) | neutral / inert | none |
| Inert gravel (Aquarium gravel) | neutral / inert | none |
| Aquasoil (ADA Amazonia) | lowers pH | very high |
| Mineralized clay substrate (Seachem Fluorite) | neutral / inert | moderate |
| Dirted tank (mineralized topsoil) (DIY soil substrate) | slightly acidic | very high |
With fish
Origin and habitat
Native to tropical and subtropical Asia, from India through Southeast Asia. Found in marshes, rice paddies, ditches, and slow-moving waterways. The species (Limnophila sessiliflora) is a feathery stem plant with whorls of finely divided, bright green leaves along each stem. The appearance is similar to Cabomba but Limnophila is significantly easier to grow, making it the recommended alternative for keepers who can't maintain Cabomba. The whorls of fine, feathery leaves create a soft, airy texture in the aquascape. Stems reach 30–50 cm and branch freely, forming dense, bushy backgrounds. The species has been in the aquarium trade for decades and remains widely available and affordable. The species has been introduced to parts of the southeastern US where escaped aquarium plants have established naturalized populations in warm waterways. Listed as a noxious weed in some US states, which restricts commercial sale.
Outdoor pond use
- USDA zones
- 8–13 (winter low around -12°C or warmer)
Care notes
An easy feathery stem plant that succeeds where Cabomba often fails. Grows in moderate to high light without CO2, though CO2 improves growth speed and fullness. The fine leaves are less prone to dieback and shedding than Cabomba under marginal conditions. Plant stems in groups of 5-8, pushed into the substrate. Growth is fast: 5–15 cm per week under good light, requiring weekly trimming. Trim tops and replant cuttings. The cut lower stems produce abundant side shoots, creating increasingly bushy growth over successive trim cycles. Under high light, the leaf whorls become tightly spaced and create a dense, feathery mass that looks spectacular as a background. Under low light, internodes lengthen and the plant becomes sparse. Nutrient requirements are moderate; liquid fertilizer supports healthy growth. Iron deficiency causes pale new growth. Temperature: 22–28°C. pH 6.0-7.5. Soft to moderately hard water. In the US, Limnophila sessiliflora may be classified as a noxious weed in some states; check local regulations. Where legal, it's one of the best easy background plants for creating a soft, natural look. A good alternative to Cabomba for keepers who want the feathery look without the difficulty. Also works well as a floating plant: stems grow horizontally at the surface with hanging roots, providing excellent fry cover.