Hillstream Loach

Sewellia lineolata

Also known as: Reticulated Hillstream Loach

A flat, sucker-bodied loach built for cool, fast, oxygen-rich water.

Water

Freshwater

Temperature

68–77°F

pH

6.5–7.5

Hardness

4–12 dGH

Max size

2.8 in

Min tank

30 gal

Temperament

Peaceful

Social

Groups (3+)

Swim level

Bottom

Diet

Herbivore

Care level

Intermediate

Lifespan

5-8 years

Breeding

Egg-scatterer

Suitability

Common

Origin

Vietnam and Laos

Hillstream loaches want strong flow, cool temperatures, and high oxygen — essentially a river in a tank. They graze biofilm off smooth rocks.