Fin's Fish Guide
The King demoiselle (Chrysiptera rex) is a saltwater fish of the family Pomacentridae that grows up to 7 cm.
Description
The king demoiselle is a small, colourful damselfish from the Western Pacific. The species grows to about 7 cm and has a yellow-brown to olive body with fine blue lines on the head and a yellowish underside. As a territorial reef-dweller it lives over rubble and reef bottoms in shallow water and feeds on algae, small zooplankton and benthic invertebrates. Males guard the eggs laid on stone. The fish appears in the reef aquarium. The IUCN assesses the species as Least Concern (LC).
Frequently asked questions
How do you recognise the King demoiselle?
The King demoiselle has a torpedo-shaped body, is mainly yellow-gold and shows a horizontal stripes pattern. Blue lines on the head; territorial nest-guarding damselfish
Where does the King demoiselle live?
The King demoiselle lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Pacific
How big does the King demoiselle get?
The King demoiselle grows to a maximum of about 7 cm.
Is the King demoiselle dangerous to humans?
No, the King demoiselle is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the King demoiselle edible?
The King demoiselle is not usually eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Chrysiptera
More from the family Pomacentridae
Want the complete picture on the King demoiselle?
Point your camera at the fish and Fin names the species in seconds. Free, and the King demoiselle is one of 12,519 species in the app.