Common name: Blacklined filefish

General information

The Blackline Filefish, scientifically known as Pervagor nigrolineatus, is a unique and somewhat rare addition to the marine aquarium. This species is known for its distinct black lines that run along its body, complemented by a pale yellow to greenish background color. It is a member of the family Monacanthidae, which includes other filefish.

In the wild, these fish are often found in shallow reefs and lagoons, where they blend in with their surroundings thanks to their cryptic coloration. They are adept at navigating through coral branches and are known to feed on a variety of small invertebrates and algae.

Care

Blackline Filefish require a well-established aquarium with plenty of live rock for grazing and hiding. They can be shy and are best kept in a peaceful community tank. It's important to provide a varied diet that includes marine algae, small crustaceans, and other meaty foods to maintain their health and coloration.

Due to their potential to nip at soft corals and clams, they are not recommended for reef tanks with a large variety of corals. However, they can do well in a fish-only or a larger predator tank setup where their behavior will not harm other tank inhabitants.

Reproduction

Little is known about the breeding habits of Pervagor nigrolineatus in the wild or in captivity. Like many marine fish, they are presumed to be broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs externally.

Habitat

The Blackline Filefish is native to the Central and Western Pacific Ocean. They are typically found in coral-rich areas and lagoons, often at depths ranging from the shallows down to about 30 meters. Their natural habitat includes regions around Hawaii, Johnston Atoll, and the Marshall Islands.