Family: Balitoridae
Plesiomyzon baotingensis — a Balitoridae from Hainan, China, calm but assertive around its chosen perch. Reaches 2.8–4.2 cm; singly or in a loose group on open rockwork. 18–26 °C.
A Balitoridae species native to Hainan, China: Plesiomyzon baotingensis lives bottom-dwelling on rock surfaces over fast-flowing mountain streams, clinging to rocks. Calm but assertive around its chosen perch. Adults reach 2.8–4.2 cm. In a community tank it pairs well with Other cool-water stream fish.
A moderate-level species: calm but assertive around its chosen perch; stable water matters more than fancy equipment.
Set the heater to 18–26 °C and avoid swings. pH 6.5–7.5, GH 5–15 dGH suit it.
Adults reach 2.8–4.2 cm; it is bottom-dwelling on rock surfaces. Plan for at least 25 litres.
Grazes rock surfaces; feed spirulina-rich foods. Vary the menu — quality flakes or pellets plus frozen or live foods.
Calm but assertive around its chosen perch. Recommended tankmates: Other cool-water stream fish — Share the need for oxygen and flow. Avoid Large aggressive cichlids — Disrupt the calm grazing regime.
Its home waters are Hainan, China — fast-flowing mountain streams, clinging to rocks, with very strong, highly oxygenated current.
Spawning unknown in home aquaria. Difficult to distinguish.