Common name: Red Sea longnose filefish

General information

The Orange Spotted Filefish, scientifically known as Oxymonacanthus halli, is a captivating species admired for its intricate patterns and vibrant colors. This species is closely related to the more commonly known Oxymonacanthus longirostris, but can be distinguished by its unique coloration and distribution. The Orange Spotted Filefish is a specialized feeder, primarily consuming Acropora polyps in the wild, which makes it a challenging species to keep in captivity.

Care

Due to their specialized diet, Orange Spotted Filefish require a well-established reef tank with a plentiful supply of live Acropora corals, which can be a significant commitment for the aquarist. They are sensitive to water quality and require stable conditions with excellent filtration. It's crucial to provide a varied diet if Acropora is not available, including finely chopped seafood and coral food supplements to mimic their natural feeding habits.

Reproduction

In the wild, Orange Spotted Filefish form monogamous pairs and exhibit complex mating behaviors. Breeding in captivity is rare, but with a mature tank and a stable pair, it is possible to observe their courtship. The female lays eggs that are guarded by the male until they hatch.

Symbiosis

While not involved in symbiosis like clownfish with anemones, the Orange Spotted Filefish's relationship with Acropora corals is a form of obligate mutualism in the wild, as the fish rely on the corals for food and the corals benefit from the cleaning and aeration provided by the fish.

Habitat

Oxymonacanthus halli is found in the Indo-Pacific region, particularly around coral reefs rich in Acropora species. They prefer shallow, clear waters where they can easily access their coral prey.