Fin's Fish Guide
The Decorated butterflyfish (Chaetodon semeion) is a saltwater fish of the family Chaetodontidae that grows up to 26 cm.
Description
The decorated butterflyfish is a large butterflyfish from the Indo-Pacific. The species grows to about 26 cm and has a deep-yellow body studded with rows of fine dark spots, with a blue-black eye band and blue accents on the fins and forehead. As a reef-dweller it usually swims in pairs over rich coral reefs and feeds on polyps, small invertebrates and algae. The fish is harmless to humans and appears in the reef aquarium. The IUCN assesses the species as Least Concern (LC).
Frequently asked questions
How do you recognise the Decorated butterflyfish?
The Decorated butterflyfish has a flattened, disc-shaped body, is mainly yellow-gold and shows a spots pattern. Deep yellow body with fine spots and blue accents; reef butterflyfish in pairs
Where does the Decorated butterflyfish live?
The Decorated butterflyfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-Pacific
How big does the Decorated butterflyfish get?
The Decorated butterflyfish grows to a maximum of about 26 cm.
Is the Decorated butterflyfish dangerous to humans?
No, the Decorated butterflyfish 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 Decorated butterflyfish edible?
The Decorated butterflyfish 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 Chaetodon
More from the family Chaetodontidae
Want the complete picture on the Decorated butterflyfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Decorated butterflyfish is one of 12,519 species in the app.