Acheilognathus barbatus

Family: Cyprinidae

Acheilognathus barbatus — a Cyprinidae from China & East Asia, mostly peaceful; keep with calm tankmates. Reaches 6.8–9.9 cm; loose shoals; groups of 6+ settle quickly. 15–25 °C.

Care parameters

Water temperature
15–25 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
6.8–9.9 cm
Minimum tank
118 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Mostly peaceful; keep with calm tankmates
Origin
China & East Asia

Species overview

Acheilognathus barbatus is a Cyprinidae from China & East Asia. In the wild it prefers clear streams and rivers over gravel; in the aquarium it stays mostly peaceful. Plan on 6.8–9.9 cm of adult fish at 15–25 °C. Related profiles: Acheilognathus barbatulus, Acheilognathus cyanostigma, Acheilognathus gracilis.

Native biotope

Habitat
Clear streams and rivers over gravel
Flow
Moderate, well-oxygenated current
Dissolved O₂
Appreciates well-oxygenated water

Aquascape & hardware

Substrate
Fine gravel and sand
Hardscape
Water-worn stones and driftwood
Plants
Hardy rooted plants along the margins

Temperament, diet & tankmates

Schooling
Loose shoals; groups of 6+ settle quickly
Diet
Small omnivore; flakes, granules and vegetable matter
Recommended tankmates
  • White-cloud mountain minnows — Share its calm, cool temperament
Avoid keeping with
  • Large or boisterous fish — Outcompeted at feeding time

Breeding & notes

Sexual dimorphism
Males often slimmer and more colourful
Breeding method
Deposits eggs in freshwater mussels; no aftercare

Frequently asked questions

Is Acheilognathus barbatus easy to keep?

Difficulty: moderate. Mostly peaceful; keep with calm tankmates. Loose shoals; groups of 6+ settle quickly.

What temperature and water chemistry does Acheilognathus barbatus need?

Hold 15–25 °C and keep it stable — 15.0–25.0 °C typical for the genus. Room temperature to heated, depending on origin.

How big does Acheilognathus barbatus get, and what tank size?

Full size is 6.8–9.9 cm. Minimum tank: 118 L, with open swimming space along its bottom-dwelling habits.

What does Acheilognathus barbatus eat?

Small omnivore; flakes, granules and vegetable matter. It forages naturally over fine gravel and sand, so let some food reach the bottom.

Can Acheilognathus barbatus live with other fish?

Mostly peaceful; keep with calm tankmates. Recommended tankmates: White-cloud mountain minnows — Share its calm, cool temperament. Avoid Large or boisterous fish — Outcompeted at feeding time.

Where does Acheilognathus barbatus come from?

Native to China & East Asia, where it lives in clear streams and rivers over gravel. Moderate, well-oxygenated current; Appreciates well-oxygenated water.

Does Acheilognathus barbatus jump?

Not a noted jumper — a standard cover still keeps dust and spray in.

How does Acheilognathus barbatus breed?

Deposits eggs in freshwater mussels; no aftercare. Males often slimmer and more colourful.