Fishician®Diet
Herbivore – biofilm, algae, algae wafers, blanched vegetables, spirulina; needs biofilm to thrive
Aquarium species profile
Hillstream Loach
Sewellia lineolata · Southeast Asia (Vietnam — fast-flowing hill streams)
Minimum tank20 gal
Adult size2.5"
Care levelModerate
TemperamentPeaceful
Temperature65–75°F
pH range6.5–7.5
Compatible tank mates
Cold-water community fish, white cloud minnows, hillstream gobies, small Corydoras
Tank mates to avoid
Warm-water tropical fish, aggressive species, poor water flow setups
Care notes
Fascinating flattened body adapted to clinging to rocks in powerful rapids. Often called 'butterfly pleco' for its shape. Requires very high oxygen and strong water current — powerhead or river manifold recommended. Prefers cooler water than most tropicals. Grazes biofilm off rocks.
Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.