Common name: Golden butterflyfish

Scientific name: Chaetodon semeion Bleeker, 1855
Shoal of Pennant coralfish (Heniochus acuminatus, longfin bannerfish) on a background of blue water in tropical sea
Golden girdled coralfish (Coradion chrysozonus) from Great Barrier reefGolden butterflyfish

General information

The Bluecheek Butterflyfish, scientifically known as Chaetodon semeion, is a vibrant and attractive species popular among marine aquarists. This species is known for its striking coloration, featuring a bright yellow face, a deep blue cheek area, and a series of vertical white bands across its body. The Bluecheek Butterflyfish is a member of the family Chaetodontidae, which is characterized by their disc-shaped bodies and elaborate patterns.

Details

Recommended minimum tank volume
300 liter (79 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
23 cm (9″)
Care level
Moderate to easy Requires varied diet and good water quality.
Diet
Omnivore Enjoys mysis, brine shrimp, and algae.
Social
Pair Can be kept in pairs if introduced together.
Reefsafe
No May nip at coral polyps and clams.
Aggression
Semi aggresive May be territorial, especially in smaller tanks.
Captive bred
No

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
    Golden butterflyfish
    Chaetodon semeion Bleeker, 1855
  8. Synonyms
    Chaetodon decoratus Ahl, 1923

Care

Caring for Bluecheek Butterflyfish can be moderately challenging. They require a well-established aquarium with plenty of live rock for grazing and hiding. This species is known to be somewhat picky eaters, often preferring live foods or frozen preparations that include marine sponges and invertebrates. It is crucial to provide a varied diet to ensure their health and maintain their vibrant colors.

Reproduction

In the wild, Bluecheek Butterflyfish form monogamous pairs during the breeding season. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. In the home aquarium, breeding is rare, but with optimal conditions and a well-matched pair, spawning behavior may be observed.

Habitat

Bluecheek Butterflyfish are found in the Indo-Pacific region, from the Red Sea and East Africa to the Hawaiian Islands and the Tuamotu Archipelago. They typically inhabit coral-rich areas of lagoon and seaward reefs, often seen at depths ranging from 3 to 25 meters. Their natural environment is characterized by clear waters and robust coral growth, which should be mimicked in the home aquarium for their well-being.