Reeflings

Common name: Longnose tang

Scientific name: Zebrasoma rostratum (Günther, 1875)

General information

The Black Longnose Tang, Zebrasoma rostratum, is a highly sought-after species in the marine aquarium trade. Known for its striking black coloration and elongated snout, this fish is a member of the surgeonfish family and is prized for its unique appearance and active swimming behavior.

This species is relatively rare compared to other members of the Zebrasoma genus, which contributes to its higher price point and status as a luxury item among reefkeeping enthusiasts. The Black Longnose Tang is also known for its peaceful demeanor, making it a suitable addition to many community aquariums.

Details

Recommended minimum tank volume
400 liter (110 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8 to 8.4
Average size
25 cm (10″)
Care level
Moderate to easy Requires ample grazing space
Diet
Herbivore Algae sheets, veggies, pellets
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
    Sailfin Tang
    Zebrasoma
  7. Species
    Longnose tang
    Zebrasoma rostratum (Günther, 1875)
  8. Synonyms
    Acanthurus rostratus Günther, 1875

Care

Zebrasoma rostratum requires a spacious tank to accommodate its active swimming habits and potential growth up to 20 centimeters in length. A diet rich in marine algae and vegetable matter is crucial for their health, and they will also accept a variety of prepared foods. It's important to maintain high water quality and stable parameters to keep these fish thriving.

Due to their grazing nature, providing ample live rock with natural algae growth will help satisfy their dietary needs and promote natural foraging behavior. They can be sensitive to rapid changes in water conditions, so acclimation should be done carefully and slowly.

Reproduction

In the wild, Black Longnose Tangs are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs externally. In the home aquarium, breeding is rare and challenging, but not impossible for experienced aquarists with large, well-established systems.

Habitat

The natural habitat of Zebrasoma rostratum includes the coral reefs of the Central and Western Pacific Ocean. They are typically found at depths ranging from 10 to 60 meters, where they swim in clear waters above the reef, grazing on algae.

Their geographical distribution spans from the Great Barrier Reef to the islands of Oceania, including Tahiti and the Hawaiian Islands. In the wild, they are often observed singly or in small groups.