Family: Balitoridae
Erromyzon sinensis — a Balitoridae from China, calm but assertive around its chosen perch. Reaches 3.9–5.7 cm; singly or in a loose group on open rockwork. 18–26 °C.
Erromyzon sinensis, a member of the family Balitoridae, comes from China, where it inhabits fast-flowing mountain streams, clinging to rocks. Calm but assertive around its chosen perch and grazes rock surfaces; feed spirulina-rich foods, it grows to 3.9–5.7 cm and adapts well to a properly set-up aquarium in the 18–26 °C range. In a community tank it pairs well with Other cool-water stream fish.
Difficulty: moderate. Calm but assertive around its chosen perch. Singly or in a loose group on open rockwork.
Aim for 18–26 °C. Cool, highly oxygenated water; 18–26 °C typical for the family.
Full size is 3.9–5.7 cm. Minimum tank: 39 L, with open swimming space along its bottom-dwelling habits.
Grazes rock surfaces; feed spirulina-rich foods. It forages naturally over bare rock and coarse gravel, so let some food reach the bottom.
Calm but assertive around its chosen perch; singly or in a loose group on open rockwork. Good company: Other cool-water stream fish — Share the need for oxygen and flow. Keep away from Large aggressive cichlids — Disrupt the calm grazing regime.
Comes from China: fast-flowing mountain streams, clinging to rocks. Expect very strong, highly oxygenated current and requires very high dissolved oxygen.
Spawning unknown in home aquaria. Difficult to distinguish.