Common name: Orangetail filefish

Scientific name: Pervagor aspricaudus (Hollard, 1854)

General information

The Orange-Striped Pygmy Filefish, scientifically known as Pervagor aspricaudus, is a small and intriguing species popular among marine aquarists. This species is known for its unique honeycomb pattern and the striking orange stripes that run along its body, giving it a distinctive appearance. Despite its common name, it is not a true filefish but rather a close relative, sharing many characteristics with the family Monacanthidae.

Details

Recommended minimum tank volume
150 liter (40 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8.1 to 8.4
Average size
12 cm (5″)
Care level
Moderate to easy Prefers complex environments
Diet
Omnivore Varied diet incl. algae
Social
Solo Territorial, best kept alone
Reefsafe
Yes
Aggression
Semi aggresive May nip at slow fish
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Pufferfish
    Tetraodontiformes
  5. Family
    Filefish
    Monacanthidae
  6. Genus
    Spiny boxfish
    Pervagor
  7. Species
    Orangetail filefish
    Pervagor aspricaudus (Hollard, 1854)
  8. Synonyms
    Monacanthus aspricaudus Hollard, 1854
    Monacanthus rubricauda Bliss, 1883
    Pervagor melanocephalus johnstonensis Woods, 1966

Care

Caring for the Orange-Striped Pygmy Filefish requires attention to detail due to its specific dietary and environmental needs. This species thrives in a well-established aquarium with plenty of live rock for grazing and hiding. They are generally peaceful but can be territorial towards conspecifics, so it's advisable to keep only one per tank unless the aquarium is large enough to support multiple territories. A varied diet of meaty foods, such as mysis shrimp and finely chopped seafood, supplemented with marine algae, will help maintain their health and coloration.

Reproduction

In the wild, Pervagor aspricaudus exhibits a monogamous breeding behavior, with pairs forming strong bonds. In captivity, breeding is less common, but with the right conditions, including stable water quality and a stress-free environment, it is possible. The male typically guards the territory while the female deposits eggs, which the male then fertilizes.

Habitat

Native to the Indo-Pacific region, the Orange-Striped Pygmy Filefish is often found in coral-rich areas and lagoons. They prefer shallow waters where they can easily access food sources and shelter among the corals and rocks. Their natural habitat includes regions from the Red Sea to South Africa, east to the Line, Marquesan, and Society islands, north to southern Japan, and south to New Caledonia.