Hydrocotyle tripartita Japan ‘Mini’
Hydrocotyle sp. “Japan” is the popular name of the plant in different plant forums. It is a variant of Hydrocotyle tripartita from South-East Asia. It is characterised by fast, compact growth and small, intense green leaves on vertical stems. The plant is carpet-forming (5-10 cm tall) and its compact growth can be promoted by physically pressing the carpet with your hand when maintaining your aquarium (mechanical retardation). Carpet formation and compact growth do best in good light.
- Still little known novelty
- Leaves half the size of normal Hydrocotyle cf. tripartita
- Very interesting for aquascaping
Plant info
| Feature | Detail |
|---|---|
| Growth habit | Carpet-forming (5-10 cm tall) |
| Leaf size | Half the size of normal Hydrocotyle cf. tripartita |
| Light requirement | Good light for optimal growth |
| Growth promotion | Mechanical retardation by hand pressing |
FAQ
How does the growth of Hydrocotyle tripartita Japan ‘Mini’ compare to standard Hydrocotyle tripartita?
The leaves are approximately half the size of normal Hydrocotyle cf. tripartita, and the plant grows more compactly, forming a dense carpet that is 5-10 cm tall.
What lighting conditions are best for this plant?
Good light is required for optimal carpet formation and compact growth.
Can I promote compact growth by hand pressure?
Yes, physically pressing the carpet with your hand can promote compact growth through mechanical retardation.



Kimberly Jackson –
This plant adds a unique texture to my aquarium. The leaves are much smaller and more densely packed, creating a neat carpet effect. I’ve used hand pressing to keep it compact and it’s responded well to the technique. Great for aquascaping with minimal maintenance.
Adrian Nash –
I was curious about this variant after seeing it in a forum. The plant grows quickly and stays low, which is perfect for my mid-level tank. The color is vibrant and the small leaves give it a fresh look. I haven’t had any issues with it so far.
Gabrielle Fraser –
A nice addition to my planted tank. The compact size and fast growth make it ideal for filling gaps in the substrate. I found it easier to manage than standard Hydrocotyle varieties and it looks great in a well-lit area.