Sewellia lineolata | Wild-caught fish with fascinating pattern & ideal algae eater

The hillstream loach ( Sewellia lineolata ) is one of the most beautiful and popular hillstream loaches. This impressive wild-caught specimen comes from the clear, oxygen-rich mountain streams of Vietnam and captivates with its exceptionally fine, golden-brown striped pattern that shimmers in the light.

With its flat body and large pectoral fins, the hillstream loach is perfectly adapted to life in strong currents. It is a peaceful, sociable bottom dweller and an extremely effective algae eater – ideal for naturalistic river or current aquariums.

🌿 Characteristics & Attitude:
🐠 Fish size: M (4–5 cm)
🌎 Origin: Vietnam – Wild caught
🌡️ Temperature: 20-26°C
💧 pH value: 6.5–7.8
⚖️ Total hardness: up to 18 °dGH
🐟 Social behavior: Peaceful, group housing recommended (4-5 animals or more)
🌾 Aquarium: From 80 liters, with strong current, smooth stones & high oxygen content

🍽️ Feeding:
The hillstream loach feeds mainly on algae growth, microorganisms, and fine biofilm. In aquariums, it also accepts spirulina, vegetable chips, blanched vegetables, and fine frozen food.

💡 Tip:
A strong current, clean water, and algae growth on rocks promote the well-being and color intensity of this species. Dark substrate makes the pattern appear particularly striking.

👉 Conclusion:
The hillstream loach ( Sewellia lineolata ) is a beautiful, peaceful wild-caught fish with a unique pattern and useful algae-eating function – a must-have for any flowing or mountain stream aquarium.