Panda Loach (Yaoshania pachychilus)

Family: Balitoridae

A peaceful algivore balitoridae from China — advanced care.

Care parameters

Water temperature: 18–26 °C
pH: 6.5–7.5
GH hardness: 5–15 dGH
Adult length: 4.1–5.8 cm
Minimum tank: 58 L
Water layer: Bottom; rests and forages low
Difficulty: Advanced
Temperament: Peaceful
Origin: 东亚淡水水系

Species overview

A Balitoridae species: Yaoshania pachychilus lives bottom; rests and forages low over clear streams, rivers and still waters. Peaceful. Adults reach 4.1–5.8 cm. In a community tank it pairs well with Amur False Gudgeon, China-Bitterling.

Native biotope

Habitat: Clear streams, rivers and still waters
Flow: Strong current with heavy aeration
Dissolved O₂: Demands high dissolved oxygen

Aquascape & hardware

Substrate: Smooth gravel and sand with open floor space
Hardscape: Driftwood, water-worn stones and shelters that mimic the native biotope
Plants: Hardy plants on hardscape; keep the floor open

Temperament, diet & tankmates

Schooling: Solitary, pairs or small groups
Diet: Algivore; quality prepared foods with variety
Recommended tankmates: Amur False Gudgeon — Similar size and water needs
China-Bitterling — Similar size and water needs
Acanthorhodeus chankaensis — Similar size and water needs
Avoid keeping with: Large aggressive cichlids — Bullying and injury risk
Known fin nippers — Constant stress and fin damage

Breeding & notes

Sexual dimorphism: Males are typically slimmer and more intensely colored; females fuller-bodied
Breeding method: Spawning; condition with rich foods and simulate seasonal changes

Frequently asked questions

Why is my panda loach losing its black-and-white colors?

Natural maturation. The dramatic panda pattern is a juvenile trait that fades as the fish grows. Adults show a softer, still attractive pattern — it is not a sign of illness.

Is it harder to keep than other hillstream loaches?

Slightly. It demands the same cool, flowing, oxygen-rich conditions but is less tolerant of water quality lapses. A mature, stable tank is more important than for hardier relatives.

Can I keep it with other loaches?

Yes — with other hillstream species in a spacious, well-fed setup. Competition for food is the main issue, so spot-feed to make sure the panda loach gets its share.

When does the panda pattern fade?

Usually between four and eight centimetres, over some months — a gradual marbling rather than an overnight change, ending in the handsome adult pattern.