Ringtail surgeonfish – Acanthurus blochii

Ringtail surgeonfish, Blue-banded Pualu, Dark Surgeon, Ringtail Surgeonfish, Tailring Surgeonfish, Whitetail Lancet, Acanthurus blochii

The Blue-banded Pualu, Dark Surgeon, Ringtail Surgeonfish, Tailring Surgeonfish, Whitetail Lancet, scientifically known as Acanthurus blochii, is a captivating marine fish renowned for its vibrant coloration and distinctive tail markings.

Description & Characteristics

Acanthurus blochii exhibits a striking blue body, often with faint vertical bands, and a characteristic white tail ring. This striking feature gives rise to some of its common names, such as Ringtail Surgeonfish and Tailring Surgeonfish. This species can grow up to 45.0 cm in length, showcasing its impressive size amongst its counterparts.

Habitat and Occurrence

Acanthurus blochii is a common sight in the Indo-Pacific region. This species primarily inhabits coral reefs, often found at depths ranging from 2.0 to 15.0 meters, making it a resident of the neritic zone – the marine environment extending from the coastline to the edge of the continental shelf.

Taxonomy

Acanthurus blochii belongs to the Class: Teleostei, Order: Acanthuriformes, and Family: Acanthuridae. The family, Acanthuridae, is more commonly known as the surgeonfish family, and is a diverse group of marine fish characterized by their scalpel-like spines located near their tails.

Feeding

This species is herbivorous, primarily consuming algae. Its diet includes a variety of algae, as well as brine shrimps, flakes, frozen food (large sort), mysis, and zooplankton. This diverse diet allows Acanthurus blochii to thrive in its coral reef habitat, where it plays a crucial role in maintaining the health of the ecosystem.

Associated Species

Image References

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