Common name: Redtail filefish
General information
The Blackhead Filefish, scientifically known as Pervagor melanocephalus, is a unique and somewhat rare addition to the marine aquarium. This species is known for its distinctive black head and yellow-spotted body, which makes it a visually appealing choice for aquarists. It belongs to the family Monacanthidae, which is characterized by a single, retractable spine on the dorsal surface.
In the wild, these fish are often found in pairs or small groups, and they are known to be quite shy. They have a specialized diet that consists mainly of algae, small invertebrates, and sometimes coral polyps, which should be considered when keeping them in captivity.
Details
- Recommended minimum 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 rockwork
- 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
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPufferfishTetraodontiformes
- FamilyFilefishMonacanthidae
- GenusSpiny boxfishPervagor
- SpeciesRedtail filefishPervagor melanocephalus (Bleeker, 1853)
- SynonymsAcreichthys melanocephalus (Bleeker, 1853)Monacanthus melanocephalus Bleeker, 1853Stephanolepis melanocephalus (Bleeker, 1853)
Care
Blackhead Filefish require a well-established aquarium with plenty of live rock for grazing and hiding. They are not considered reef-safe, as they may nip at soft corals and some invertebrates. A varied diet that includes marine algae, mysis shrimp, and other meaty foods is essential for their health. Due to their shy nature, they should be housed with peaceful tank mates and provided with a stress-free environment.
Reproduction
Little is known about the breeding habits of Pervagor melanocephalus in the wild or in captivity. They are presumed to be broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs externally. In the aquarium, breeding is rare and not well documented.
Habitat
The Blackhead Filefish is typically found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They inhabit lagoons and coral reefs, often hiding among the branches of corals. They are usually observed at depths ranging from shallow waters to about 25 meters.
Given their natural habitat, maintaining water quality and providing a similar environment in the home aquarium is crucial for their well-being.