Reticulated Hillstream Loach (Sewellia lineolata)
The Reticulated Hillstream Loach is a fascinating freshwater loach, prized for its flattened body shape, strong clinging fins and beautiful maze-like reticulated patterning. Also known as the Tiger Hillstream Loach or Gold Ring Butterfly Sucker, this species is adapted for life in cool, fast-flowing, highly oxygenated streams. In the aquarium it is a peaceful and active grazer, best suited to a mature river-style setup with smooth rocks, strong oxygenation and plenty of natural biofilm.
Key Features
- Flattened body with strong clinging fins
- Maze-like reticulated pattern on body
- Peaceful and active grazer
- Thrives in fast-flowing, oxygen-rich environments
Recommended Setup
| Parameter | Requirement |
|---|---|
| Water Temperature | 18–22°C |
| Water Flow | Strong, oxygenated current |
| Substrate | Smooth rocks and sand |
| Lighting | Moderate to high |
FAQ
What is the ideal water flow for a Reticulated Hillstream Loach?
A strong, oxygenated current is essential. This species thrives in fast-flowing environments similar to its natural habitat in mountain streams.
Can this loach be kept with other fish?
Yes, it is peaceful and can coexist with other non-aggressive, similarly sized fish in a well-maintained river-style aquarium.
What type of food does it prefer?
It is primarily a grazer and feeds on natural biofilm, algae, and small aquatic plants. A varied diet including algae wafers and sinking pellets is recommended.
Justin Lee –
The loach is very active and beautiful with its unique pattern. I keep it in a river-style tank with strong flow and smooth rocks. It’s peaceful and enjoys grazing on algae. A great addition to a mature freshwater setup.
Alexandra Randall –
It’s a striking fish with a maze-like pattern. I’ve had it for three months and it’s adapted well to the flow. Feeds well on algae wafers and biofilm. Needs a strong filter and good oxygenation.
Elizabeth Gill –
The coloration is vivid and the fish is very active. I noticed it clings to rocks and grazes naturally. It’s not aggressive and fits well in a community tank with other calm species.