Reeflings

Common name: Achilles tang

Scientific name: Acanthurus achilles Shaw, 1803

General information

The Achilles Tang, Acanthurus achilles, is a striking and popular marine fish known for its distinctive orange teardrop near the tail and vibrant red-orange tail fin. This species is a member of the surgeonfish family and is prized for its active swimming behavior and unique coloration.

Details

Recommended minimum tank volume
378 liter (100 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8 to 8.4
Average size
25 cm (10″)
Care level
Moderate to easy Needs ample swimming space.
Diet
Herbivore Prefers algae; may accept flakes.
Social
Solo Territorial; best kept alone.
Reefsafe
Yes
Aggression
Semi aggresive May be aggressive to similar species.
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perciformes
    Perciformes
  5. Family
    Surgeonfish
    Acanthuridae
  6. Genus
    Surgeonfish
    Acanthurus
  7. Species
    Achilles tang
    Acanthurus achilles Shaw, 1803
  8. Synonyms
    Acanthurus achillas Shaw, 1803
    Acanthurus aterrimus Günther, 1872
    Hepatus achilles (Shaw, 1803)
    Hepatus aterrimus (Günther, 1872)
    Teuthis achilles (Shaw, 1803)
    Teuthis aterrimus (Günther, 1872)

Care

Achilles Tangs require a large aquarium with plenty of swimming space and a well-established environment with stable water conditions. They are herbivores, so a diet rich in marine algae and vegetable matter is essential. Due to their active nature, they are prone to stress in confined spaces, so a tank size of at least 180 gallons is recommended.

Reproduction

In the wild, Achilles Tangs form spawning aggregations. However, breeding them in captivity is extremely challenging and rarely successful. They exhibit broadcast spawning, where eggs and sperm are released into the water column.

Symbiosis

While not known for specific symbiotic relationships, Achilles Tangs contribute to the reef ecosystem by grazing on algae, which helps prevent overgrowth and maintain coral health.

Habitat

Achilles Tangs are found in the Pacific Ocean, from Hawaii to French Polynesia, and as far west as Japan and the Great Barrier Reef. They prefer clear, shallow waters and are often seen in surge zones of coral reefs where they can graze on algae.