Common name: Chevron butterflyfish

Scientific name: Chaetodon trifascialis Quoy & Gaimard, 1825
A view of a colorful Chevron butterflyfish (Chaetodon trifascialis) swimming in the coralsChevroned butterflyfish (Chaetodon trifascialis) in Red Sea

General information

The Chevron Butterflyfish, also known as the Triangular Butterflyfish, is a striking species known for its bold chevron patterns and elongated snout. It is scientifically named Chaetodon trifascialis and belongs to the family Chaetodontidae. This species is not as commonly kept as some other butterflyfish due to its specialized dietary needs and sensitivity to aquarium conditions.

Details

Recommended minimum tank volume
400 liter (110 gallons)
Salinity
S.G. 1.022 to 1.025
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8.1 to 8.4
Average size
18 cm (7″)
Care level
Moderate to easy Sensitive to water quality.
Diet
Carnivore Prefers live coral polyps.
Social
Pair Pairs are often monogamous.
Reefsafe
No Eats coral polyps.
Aggression
Semi aggresive May nip at other butterflyfish.
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Butterflyfish
    Chaetodontidae
  6. Genus
    Butterflyfish
    Chaetodon
  7. Species
    Chevron butterflyfish
    Chaetodon trifascialis Quoy & Gaimard, 1825
  8. Synonyms
    Chaetodon bifascialis Cuvier, 1829
    Chaetodon leachii Cuvier, 1831
    Chaetodon striangulus Cuvier, 1831
    Chaetodon strigangulus Cuvier, 1831
    Chaetodon strigangulus Lay & Bennett, 1839
    Chaetodon tearlachi Curtiss, 1938
    Chaetodon triangularis Rüppell, 1829
    Eteira taunayi Kaup, 1860
    Megapotodon trifascialis (Quoy & Gaimard, 1825)
    Megaprotodon strigangulus (Cuvier, 1831)
    Megaprotodon trifascialis (Quoy & Gaimard, 1825)

Care

Chevron Butterflyfish are considered challenging to keep in home aquariums. They require a well-established tank with plenty of live rock for grazing and hiding. This species is known to feed primarily on coral polyps in the wild, so it may not adapt well to prepared diets. Providing a varied diet that includes live foods and supplements designed for coral-feeding fish can help, but success is not guaranteed.

Reproduction

In the wild, Chevron Butterflyfish form monogamous pairs during the breeding season. They are pelagic spawners, releasing eggs and sperm into the water column where fertilization occurs. The larvae are planktonic before settling onto the reef. Breeding in captivity is rare and poses significant challenges for hobbyists.

Habitat

Chaetodon trifascialis is found in the Indo-Pacific region, from East Africa to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, south to Lord Howe and Rapa Iti, and throughout Micronesia. They are typically associated with steep outer reef slopes and drop-offs, often observed at depths ranging from 3 to 150 meters.