The blue chromis will quickly retreat into coral crevices if frightened.
  • Size

    Maximum length of 6 inches (15 cm)
  • Diet

    Small crustaceans and zooplankton
  • Range

    Western Atlantic from Bermuda through south Florida and the Caribbean
  • Habitat

    Tropical waters above deep outer reefs

Physical Characteristics

  • Maximum length of the blue chromis is approximately 6 inches (15 cm).
  • Predominantly blue, with dark black stripe running from mouth to the dorsal fin all the way to the caudal, or tail, fin. Virtually translucent pectoral fins. Large dark eye.

Animal Fact

Individual chromis feed on prey gathered in large groups.

Diet / Feeding

  • Diet consists of copepods, which are very small crustaceans, and other zooplankton.
  • Individual chromis feed on prey gathered in large groups.

Range / Habitat

  • Occurs in the Western Atlantic from Bermuda through south Florida and the Caribbean, including the Bahamas, the Gulf of Mexico and the Antilles.
  • Found in tropical waters above deep outer reefs, commonly at depths of 30-60 feet (10-20 m). Depth range is approximately 9 to 180 feet (3-60 m).
  • Non-migratory.

Reproduction & Growth

  • Oviparous, or egg-laying.
  • Male protects and tends to eggs, which attach to substrate.

Conservation Status

  • “Least Concern” on IUCN Red List.

Additional Information

  • If frightened, chromis will retreat into coral crevices.
  • Frequently seen with creole wrasse.

Sources

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