Acrossocheilus fasciatus

Family: Cyprinidae

A semi-aggressive herbivore cyprinidae from South China, Taiwan and northern Vietnam — moderate care.

Care parameters

Water temperature: 18–26 °C
pH: 6.5–7.5
GH hardness: 5–15 dGH
Adult length: 13.4–19.2 cm
Minimum tank: 192 L
Water layer: Mid-water swimmer; keep 5+
Difficulty: Moderate
Temperament: Semi-aggressive
Origin: China & Indochina

Species overview

Acrossocheilus fasciatus is a Cyprinidae from China & Indochina. In the wild it prefers clear streams, rivers and still waters; in the aquarium it stays semi-aggressive. Plan on 13.4–19.2 cm of adult fish at 18–26 °C. Related profiles: Acrossocheilus paradoxus, Acrossocheilus hemispinus, Acrossocheilus iridescens.

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: Keep 5+; larger groups settle better
Diet: Herbivore; 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

Will it control algae in my tank?

It grazes diligently and will reduce growth on stones and glass, but it is a fish, not a cleaning service — supplement its diet, especially in a clean aquarium.

Can it live in a warm community tank?

Not ideally. Sustained temperatures above 24–25 °C shorten its life and dull its colors. Cool, fast, oxygen-rich water is the requirement.

Is it aggressive?

No — it is a peaceful grazer, though its boisterous feeding can unsettle very shy species. Mix with other active cool-water fish of similar size.

Can they live with hillstream loaches?

Yes — same cool, fast, oxygen-rich water, different feeding zones. The combination is one of the most natural and functional pairings in the native stream tank.