Common Name: Hillstream Loach
Scientific Name: Sewellia lineolata (most commonly kept species; there are others in the Sewellia, Beaufortia, and Gastromyzon genera)
Genus: Varies (Sewellia, Beaufortia, Gastromyzon)
Wild Origin: Southeast Asia, particularly in fast-flowing rivers and streams of Vietnam, Laos, and China.
The Hillstream Loach is a unique freshwater fish known for its flattened body, which is perfectly adapted for life in fast-moving streams. Its sucker-like mouth and fins allow it to cling to rocks and other surfaces in strong currents. Hillstream Loaches are prized for their unusual appearance, peaceful temperament, and algae-eating habits, making them an excellent addition to well-maintained aquariums. They typically grow to about 2-3 inches (5-7.5 cm) and can live 8-10 years with proper care.
Habitat and Tank Requirements:
Hillstream Loaches thrive in aquariums that mimic their natural environment, with strong water flow, oxygen-rich water, and plenty of smooth surfaces for grazing.
Tank Size and Water Parameters:
| PARAMETER | RECOMMENDED |
|---|---|
| Tank Size | Minimum 75 litres |
| Temperature | 68-75°F (20-24°C) |
| pH | 6.5-7.5 |
| Hardness | Soft to moderately hard water, 5-15 dGH |
To replicate their natural habitat, use a tank with a strong filter or powerhead to create fast-moving water. Smooth rocks, driftwood, and sand or fine gravel substrate are ideal for providing grazing surfaces and places to rest. Live plants such as Anubias or Java fern, which can attach to rocks and driftwood, are great additions. Regular water changes and high oxygen levels are essential for their health
We Recommend:
These carefully selected options provide a well-balanced nutritional profile, ensuring that your fish receive the essential nutrients they need for optimal growth, vibrant colors, and overall health. By offering a variety of these high-quality foods, you can help maintain the vitality and well-being of your fish, promoting a healthy and thriving aquarium environment.
Behavior and Compatibility:
Hillstream Loaches are peaceful, active bottom-dwellers that enjoy the company of their own kind. They should be kept in groups of at least 3-5 individuals to encourage natural social behaviors.
They are compatible with other non-aggressive fish that enjoy cooler, fast-moving water, such as White Cloud Mountain Minnows, Danios, and certain species of Rainbowfish. Avoid housing them with large, aggressive species or slow-moving fish that prefer calmer waters.
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