Species database

Diademed Squirrelfish

Poisson-écureuil diadème

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Species database

Key information

Scientific name
Poisson-écureuil diadème
Common name
Diademed Squirrelfish
Family
Holocentridae
Type
Fish
Maximum size (cm)
17
Minimum depth (m)
1
Maximum depth (m)
70
Habitat
Coral reefs and rocky areas in tropical and subtropical waters.
Distribution
Found in the Indo-Pacific region, including the Red Sea and the eastern coast of Africa.
Conservation status
Least Concern
Edibility
Edible, but it is a small, bony fish and is not widely valued for eating. Handle carefully because of sharp fin spines.
Culinary quality / 5
2
Danger level
Caution
Usual observation depth
5–30 m
Behaviour
Mainly nocturnal. Generally solitary or in loose small groups; it shelters in cracks or under ledges during the day and forages on the reef at night.
Observation zones
Coral reef, rocky reef, reef drop-off, ledges, crevices, overhangs and caves.
Diet
Mainly small benthic invertebrates, particularly crustaceans, as well as worms and other small reef animals.
Reproduction
Oviparous
Identification marks
Small squirrelfish with a deep, bright red body crossed by fine horizontal silvery-white lines, very large eyes, and a strong, sharp spine on the operculum. The dorsal fin bears robust spines.
Similar species
It may be confused with other striped squirrelfish of the genus Sargocentron, notably the red squirrelfish Sargocentron rubrum. Confirm identification based on the combination of the line pattern, head and dorsal fin markings, and range; close observation or a regional guide may be necessary.
Approach rules
Observe calmly without blocking its retreat toward shelter. Keep a respectful distance of approximately 2 m, do not touch or handle the animal, avoid close and repeated flashes, and never feed it.
Protection
Globally assessed as « Least Concern » on the IUCN Red List. No CITES listing is known. Protect reef habitat and avoid collection or disturbance.
Conservation source
Source checked on
2026-08-02

Where to see Diademed Squirrelfish while diving?

Discover the dive sites where this species has been observed or photographed by the ScubaSpot Advisor community.

Richelieu Rock

Maritime Zone, Thailand

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West Ridge, Koh Bon

Maritime Zone, Thailand

View spot