Continental stone loach (Barbatula nuda)

Family: Nemacheilidae

A peaceful omnivore nemacheilidae from China, Mongolia, Russia — moderate care.

Care parameters

Water temperature
18–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
15.4–22 cm
Minimum tank
220 L
Water layer
Bottom; rests and forages low
Difficulty
Moderate
Temperament
Peaceful
Origin
蒙古

Species overview

Barbatula nuda of the family Nemacheilidae is an aquarium-kept Nemacheilidae. Peaceful and omnivore; quality prepared foods with variety, it grows to 15.4–22 cm and prefers 18–26 °C water. Other Barbatula species in our database include Barbatula toni.

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
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 Continental stone loach easy to keep?

Intermediate difficulty. Peaceful; solitary, pairs or small groups.

What temperature and water chemistry does Continental stone loach need?

Aim for 18–26 °C. Standard heater to hold the mid-range steadily; community-standard range; verify locally.

How big does Continental stone loach get, and what tank size?

Full size is 15.4–22 cm. Minimum tank: 220 L, with open swimming space along its bottom; rests and forages low habits.

What does Continental stone loach eat?

Omnivore; quality prepared foods with variety. Vary the menu — quality flakes or pellets plus frozen or live foods.

Can Continental stone loach live with other fish?

Peaceful; solitary, pairs or small groups. Good company: Amur False Gudgeon — Similar size and water needs, China-Bitterling — Similar size and water needs, Acanthorhodeus chankaensis — Similar size and water needs. Keep away from Large aggressive cichlids — Bullying and injury risk, Known fin nippers — Constant stress and fin damage.

Where does Continental stone loach come from?

Native to 蒙古, where it lives in clear streams, rivers and still waters. Strong current with heavy aeration; Demands high dissolved oxygen.

How does Continental stone 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.