Common name: Speckled maori wrasse

Scientific name: Oxycheilinus arenatus (Valenciennes, 1840)
ナポレオンフィッシュSpeckled Maori Wrasse (Cheilinus arenatus)
ナポレオンフィッシュナポレオンフィッシュ

General information

The Ringtail Wrasse, Oxycheilinus arenatus, is a vibrant and active fish that adds both color and dynamism to a saltwater aquarium. Known for its distinctive pinkish to reddish body and the prominent dark spot at the base of its tail, this species is a favorite among aquarists who appreciate its beauty and interesting behavior.

Details

Recommended minimum volume
200 liter (53 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
25 cm (10″)
Care level
Moderate to easy
Diet
Carnivore
Social
Solo
Reefsafe
Yes
Aggression
Semi aggresive
Captive bred
No
Conservation status
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Wrasses
    Labridae
  6. Genus
    Wrasse
    Oxycheilinus
  7. Species
    Speckled maori wrasse
    Oxycheilinus arenatus (Valenciennes, 1840)
  8. Synonyms
    Cheilinus arenatus Valenciennes, 1840
    Cheilinus arenatus valenciennes , 1840
    Cheilinus notophthalmus Bleeker, 1853
    Oxycheilinus notophthalmus (Bleeker, 1853)

Care

Ringtail Wrasses are known for their hardiness and adaptability in a well-established aquarium. They require a tank with plenty of live rock for hiding and hunting invertebrates, which are a natural part of their diet. It's important to have a tightly fitting lid as they are skilled jumpers. A varied diet of meaty foods, including frozen mysis shrimp and brine shrimp, will keep them healthy and their colors vibrant.

Reproduction

In the wild, Oxycheilinus arenatus exhibits protogynous hermaphroditism, where individuals start life as females and can later transform into males. This is less commonly observed in the aquarium setting, but understanding their reproductive behavior can be fascinating for advanced hobbyists interested in marine biology.

Habitat

The Ringtail Wrasse is commonly found in the Indo-Pacific region, from the Red Sea to South Africa and east to the Line Islands. They inhabit coral-rich areas of lagoon and seaward reefs, usually at depths ranging from 1 to 30 meters. Their natural habitat includes a variety of reef structures which provide both food and shelter.