Hygroryza aristata
This is the only grass species that is used in aquariums. It has to be pruned back on a regular basis or it will shade out any other plants below it. This is a great plant for open-topped aquariums and its roots will provide refuge for juvenile fish if used in a rearing tank. In its native countries, it is often found as a weed among the planted rice fields.
Key Features:
- Scientific name: Hygroryza aristata
- Family: Poaceae
- Usual maximum size in aquariums: 1 – 4 cm (0.39 – 1.57 inch)
- Recommended pH range for the species: 6.2 – 7.8
| Feature | Value |
|---|---|
| Scientific Name | Hygroryza aristata |
| Family | Poaceae |
| Max Size in Aquarium | 1 – 4 cm (0.39 – 1.57 inch) |
| Recommended pH Range | 6.2 – 7.8 |
FAQ
Is Hygroryza aristata suitable for beginner aquarium keepers?
Yes, it is suitable for beginners due to its low maintenance requirements and tolerance to a wide pH range. However, regular pruning is needed to prevent it from shading other plants.
Can this plant be used in a fish rearing tank?
Yes, the roots of Hygroryza aristata provide shelter for juvenile fish, making it ideal for use in rearing tanks.
Does this plant grow quickly in aquariums?
It grows slowly and typically reaches a maximum size of 1 to 4 cm, so it does not dominate the tank quickly.

Abigail Sutherland –
I added Hygroryza aristata to my open-topped aquarium and it has been thriving. The plant stays small and doesn’t overshadow other species. I prune it every two weeks to keep it in check. The roots offer good hiding spots for my baby guppies.
Sam Hunter –
It’s a unique addition to my planted tank. I noticed it grows slowly and stays within the 1-4 cm range. I appreciate that it doesn’t compete with other plants. A bit of pruning is needed, but it’s manageable.
Dan Hart –
Used this in a juvenile fish rearing tank. The roots provide excellent cover for fry, and the plant remains tidy. It’s easy to maintain and works well in a pH range of 6.5 to 7.5.