Large scale loach (Paramisgurnus dabryanus)

Family: Cobitidae

A peaceful omnivore cobitidae from the middle and lower Yangtze and waters south of it in China, plus northern Vietnam — beginner-friendly.

Care parameters

Water temperature
10–25 °C
pH
6.5–7.5
GH hardness
6–18 dGH
Adult length
15–21.5 cm
Minimum tank
215 L
Water layer
Bottom; rests and forages low; keep 3+
Difficulty
Easy
Temperament
Peaceful
Origin
中国长江中下游及以南水系、越南北部

Species overview

Paramisgurnus dabryanus is a Cobitidae. In the aquarium it stays peaceful. Plan on 15–21.5 cm of adult fish at 10–25 °C. In a community tank it pairs well with Amur False Gudgeon, China-Bitterling.

Native biotope

Habitat
Clear streams, rivers and still waters
Flow
Still to very gentle water
Dissolved O₂
Tolerates low oxygen

Aquascape & hardware

Substrate
Fine sand
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
Keep 3+; larger groups settle better
Diet
Omnivore; 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

Is Large scale loach easy to keep?

Difficulty: easy. Peaceful. Keep 3+; larger groups settle better.

What temperature and water chemistry does Large scale loach need?

Aim for 10–25 °C. Standard heater to hold the mid-range steadily; 10–25 °C recorded range.

How big does Large scale loach get, and what tank size?

Expect 15–21.5 cm as an adult, living bottom; rests and forages low; keep 3+. A 215 L tank or larger gives it room.

What does Large scale loach eat?

Omnivore; quality prepared foods with variety. Feed two small meals a day rather than one large one.

Can Large scale loach live with other fish?

Yes, with care. Peaceful — pair it with Amur False Gudgeon — Similar size and water needs, China-Bitterling — Similar size and water needs, Acanthorhodeus chankaensis — Similar size and water needs and skip Large aggressive cichlids — Bullying and injury risk, Known fin nippers — Constant stress and fin damage.

Where does Large scale loach come from?

Its home waters are 中国长江中下游及以南水系、越南北部 — clear streams, rivers and still waters, with still to very gentle water.

Does Large scale loach jump?

It can jump when startled — keep the tank tightly covered, especially at night and during maintenance.

How does Large scale loach breed?

In the aquarium: spawning; condition with rich foods and simulate seasonal changes. Males are typically slimmer and more intensely colored; females fuller-bodied.