
Source: Wikimedia Commons
Chelmon rostratus
A butterflyfish with orange stripes and elongated snout. Also valued for controlling Aiptasia anemones.
The copperband butterflyfish (Chelmon rostratus), also called the beaked coral fish, is found on coral reefs of both the Pacific and Indian Oceans. Its white body banded with four coppery-orange vertical stripes and its remarkably elongated, beak-like snout make it instantly recognizable. In nature it uses this narrow mouth to probe coral crevices and rocky interstices for small invertebrates, polychaete worms, and tube-dwelling organisms. It is frequently introduced to reef aquariums specifically for biological control of Aiptasia anemones, which it will eat — though individual willingness varies significantly and cannot be guaranteed. Notoriously difficult to establish on prepared foods, beginners are advised to start with frozen clam and frozen brine shrimp and transition gradually.
Source: Wikipedia (CC BY-SA 4.0)
The Copperband Butterflyfish lives 5-10 years.
The Copperband Butterflyfish grows to 15-20cm.
The ideal water temperature for the Copperband Butterflyfish is 22〜26℃.
Origin
Coral reefs of the Pacific and Indian Oceans
Lifespan
5-10 years
Sources: LiveAquaria
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Chelmon rostratus
Authority databases: GBIF
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed) / Ministry of the Environment Specified Animal List / Ministry of the Environment: List of Designated Invasive Species
Regulations may change. Always verify the latest information with the relevant authorities.
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Size
15-20cm
Temperature
23〜26℃
Frozen food, Clam
Hard to wean onto food; start with frozen clam and acclimate gradually. It is also known for eating Aiptasia (glass anemones).
Sensitive to water quality and needs stable conditions
It fights with its own kind, so keep one per tank. Its slender snout picks small creatures out of rock holes, so small bottom-dwelling invertebrates will dwindle.
It may nip corals, and Aiptasia control varies greatly by individual; not every fish eats them. Do not expect too much in a reef tank.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Copperband Butterflyfish is 22〜26℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Copperband Butterflyfish is 5-10 years. With proper care and nutrition, they can live a long and healthy life.
Copperband Butterflyfish typically reaches 15-20cm as an adult. Size may vary depending on care conditions and individual genetics.
Copperband Butterflyfish feeds on: Frozen food, Clam. Aim for a balanced diet with appropriate feeding frequency.
The price of Copperband Butterflyfish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: August 31, 2026