Fish Identifier
Passer Angelfish (Holacanthus passer)
Aichi Gamagori c20250802 1610 竹島水族館 by 円周率3パーセント, via Wikimedia Commons, licensed under CC BY-SA 4.0
reef

Passer Angelfish

Holacanthus passer

An eastern-Pacific angelfish with a dark blue body, a single white vertical bar, and a yellow tail.

Habitat
Rocky reefs, E Pacific
Size
25-35 cm
Diet
Omnivore

Spotted a fish like this?

Identify any fish from a photo, free.

Overview

The Passer Angelfish (Holacanthus passer), also called the king angelfish, is a large angelfish of the eastern Pacific, from the Gulf of California to Peru including the Galapagos. Adults are dark blue to grey with a single bright vertical white bar behind the head, a yellow tail and pectoral fins, and orange tones on the face. It is one of the few large angelfish of the eastern Pacific and a conspicuous reef fish there, sometimes acting as a cleaner. Juveniles show additional bars and orange that fade with age.

How to identify it

Identify the Passer Angelfish by:

  • A dark blue to grey body with a single vertical white bar behind the head.
  • A yellow tail and yellow pectoral fins.
  • Orange tones around the face; deep angelfish body, ~25-35 cm.

The single white bar on a dark body with a yellow tail is distinctive within its eastern-Pacific range.

Habitat & range

Passer Angelfish inhabit rocky reefs and rocky-coral areas from the shallows to about 30 m in the eastern Pacific, from the Gulf of California south to Peru and around the Galapagos. They favour structured rocky reefs with caves and ledges and are often seen in the region's characteristic cooler tropical waters.

Behavior & ecology

Passer Angelfish are diurnal omnivores that feed on sponges, algae, plankton, and small invertebrates, and juveniles and some adults will pick parasites from other fishes as facultative cleaners. They occur singly, in pairs, or small groups near rocky structure. As protogynous hermaphrodites, a dominant male oversees a group of females, and pairs spawn by rising into the water column to release eggs.

Frequently asked questions

How do I recognize a Passer Angelfish?

A dark blue body with one vertical white bar and a yellow tail, in the eastern Pacific.

Does it clean other fish?

Yes, juveniles and some adults act as facultative cleaners.

How big does it get?

About 25-35 cm.

Passer Angelfish guides

In-depth guides for identifying, understanding, and caring about Passer Angelfish.