Sewellia lineolata (Hillstream Loach) Bred in SA
R120,00
The Sewellia lineolata is a stunning freshwater hillstream loach native to fast-flowing streams in Southeast Asia. Known for its flattened, streamlined body and suction-cup fins, it clings effortlessly to rocks and hard surfaces, making it a fascinating addition to high-flow aquariums. Its intricate striped patterning adds visual interest to aquascapes while performing a functional role as a natural algae grazer.
The Sewellia lineolata is a stunning freshwater hillstream loach native to fast-flowing streams in Southeast Asia. Known for its flattened, streamlined body and suction-cup fins, it clings effortlessly to rocks and hard surfaces, making it a fascinating addition to high-flow aquariums. Its intricate striped patterning adds visual interest to aquascapes while performing a functional role as a natural algae grazer.
Facts
Scientific Name: Sewellia lineolata
Common Name: Hillstream Loach, Butterfly Loach
Size: 5–7 cm
Lifespan: 4–6 years
Origin: Vietnam
Difficulty: Intermediate
Tank Requirements
Minimum Tank Size: 60 litres
Temperature: 20–25 °C
pH: 6.5–7.5
GH: 5–12 dGH
KH: 3–10 dKH
Substrate: Smooth rocks and pebbles; plenty of flat surfaces for grazing
Filtration: Strong flow to mimic natural streams
Lighting: Moderate; provide shaded areas with plants or caves
Behaviour and Tank Mates
Peaceful but territorial with its own species; best kept in small groups with ample space
Bottom-dweller, constantly grazing on rocks and hard surfaces
Compatible with other peaceful fish such as small rasboras, Corydoras, or shrimp
Avoid aggressive or large tank mates that may stress or outcompete them
Diet
Primarily grazes on algae and biofilm
Supplement with algae wafers, spirulina pellets, and blanched vegetables (zucchini, cucumber, spinach)
Occasional protein-based foods can be offered, but plant-based diet is essential
Breeding
Breeding in home aquariums is very rare due to the need for strong currents and specific environmental conditions
Typically maintained for display and algae control
Care Tips
Maintain high oxygen levels and strong water flow
Provide plenty of smooth rocks, driftwood, and hiding spots
Keep water clean and stable; sensitive to high nitrate or poor water quality
Avoid copper-based medications
Why You Want Them
The Sewellia lineolata is perfect for aquarists seeking a functional and visually striking loach. Its intricate striped patterns, constant grazing behaviour, and unique body shape make it a standout species in planted or aquascaped tanks. Ideal for rocky, high-flow setups, it helps control algae naturally while adding movement and interest to the bottom of the aquarium.
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We are committed to providing healthy and thriving livestock to our customers. Here are some important details to keep in mind:
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