Chaetodon xanthurus

Datasheet

General Description

The Pearlscale Butterflyfish (Chaetodon xanthurus) is part of the Chaetodontidae family known for their vibrant patterns and colors, with this species specifically belonging to the Xanthurus complex. These fish are usually 14.0cm in size and originate from the Western Pacific region, particularly Indonesia and the Philippines. They are recognized for their striking appearance and are often found among coral reefs.

Aquarium Suitability

The Pearlscale Butterflyfish is deemed suitable for aquariums with proper care. They can coexist with their own species, but caution is advised when pairing them with more aggressive fish due to their docile nature. It is recommended to introduce multiple specimens simultaneously to avoid conflicts. Additionally, these fish require a well-established tank with ample hiding spots and swimming space.

Demands, Care, and Hardiness

This species has average hardiness, necessitating a meticulous approach to care. The Pearlscale Butterflyfish thrives on a varied diet consisting of live corals, mussels, zooplankton, and other small invertebrates. Feeding multiple times a day, especially during the initial stages, is crucial, and ensuring a proper feeding regimen is essential for their longevity in captivity.

Reef Suitability

Pearlscale Butterflyfish are not considered reef-safe due to their tendency to nibble on clams, particularly Tridacna species, as well as their preference for tubeworms. Their diet may pose challenges in a reef environment as they typically feed on coral polyps.

Aquarium Setup

Setting up an aquarium for Pearlscale Butterflyfish involves providing enough hiding places among live rocks, maintaining a well-run tank with algae for grazing, and ensuring a varied diet incorporating larger crustaceans, microalgae, invertebrates, and zooplankton. The tank should have stable water conditions with a temperature range of 22.2-25.6°C, a pH of 8.1-8.4, a specific gravity of 1.020-1.025, and a carbonate hardness of 8-12 dKH.

Behaviour

These fish are known to be shy and peaceful, mostly ignoring other fish in the tank. However, they may exhibit territorial behavior towards their own species unless they form a pair. Providing ample space for swimming and appropriate hiding spots will help alleviate stress in these fish.

Feeding and Diet

The Pearlscale Butterflyfish must be fed a diverse diet, including live corals, mussels, zooplankton, microalgae, and larger crustaceans like shrimp and crabs. Mimicking their natural feeding behavior by offering food in coral skeletons or stones can help in their acclimatization to captive diets.

Dimorphism

Information on dimorphism in Pearlscale Butterflyfish is not explicitly provided. However, captive reproduction methods and distinct physical differences, if present, may vary among individuals or populations.

Habitat and Distribution

These fish are commonly found in the waters of Australia, Japan, Indonesia, and the Central/West Pacific region, with a distribution range extending from Indonesia and the Philippines northward to the Ryukyu Islands. Their natural habitats include coral reefs, where they feed on a variety of small invertebrates and corals, contributing to the delicate balance of reef ecosystems.