Common name: West Australian butterflyfish

General information

The Western Butterflyfish, also known as the Threadfin Butterflyfish, is a striking species known for its elongated dorsal filaments and distinctive coloration. It is a member of the Chaetodontidae family, which is renowned for its diverse and ornately patterned species. The Western Butterflyfish has a white body with diagonal black bands and a touch of yellow on the fins, making it a visually appealing addition to any aquarium.

Care

Chaetodon assarius requires a well-established aquarium with plenty of live rock for grazing and hiding. They are not the easiest species to keep due to their specialized dietary needs, often requiring a varied diet of coral polyps, benthic invertebrates, and algae. It is crucial to ensure that they are provided with a diet that mimics their natural feeding habits to maintain their health and coloration.

Reproduction

In the wild, butterflyfish are generally monogamous and exhibit pair bonding. They engage in elaborate courtship displays and often release their eggs and sperm into the water column, where fertilization occurs. The larvae are planktonic, drifting in the open ocean before settling down and transforming into juveniles.

Habitat

The Western Butterflyfish is found in the Indo-Pacific region, typically inhabiting coral reefs and lagoons. They prefer clear waters where they can easily access their food sources. In the wild, they are often observed in pairs or small groups, gracefully navigating through the complex reef structures.