Hillstream Loach
Sewellia lineolata
A flat, disc-shaped loach designed by evolution to cling to rocks in fast-flowing mountain streams. Their suction-cup body and intricate leopard-like spotted pattern make them one of the most alien-looking freshwater fish available.
Buy Hillstream Loach →Quick Facts
Water Parameters
Natural Habitat
Fast-flowing, oxygen-rich mountain streams in central Vietnam over smooth boulders with algae biofilm.
Vietnam
Vietnam
Feeding
Biofilm and algae grazer — algae wafers, blanched vegetables. Needs matured tank with established biofilm.
Compatible Tank Mates
Good Matches
Avoid
Breeding
Bred in captivity with high flow, cool water, and abundant biofilm. Males are broader.
Care Tips
Needs strong water flow — powerhead or river-style setup
Cool water — 18-24°C, NOT tropical temperatures
Flat body is a suction cup — they cling to glass and rocks
Must have established biofilm to eat
Not a warm-water fish — research before buying
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