Thai National Parks

Marine spacies of Thailand

Species of Thailand

Blue ring angelfish

Binomial name: Pomacanthus annularis, Marcus Elieser Bloch, 1787

The blue ring angelfish (Pomacanthus annularis) is an angelfish of the family Pomacanthidae, found in the Indo-West Pacific oceans from East Africa, throughout Indonesia and New Guinea to New Caledonia, north to southern Japan.

In the aquarium

It is highly sought after and prized member of the Pomacanthus genus, composed of large marine angelfish. Blue ring angelfish can reach up to 12 inches in the wild and often obtain lengths near that in captivity.

It bears a considerable resemblance to the Emperor Angelfish in that it undergoes changes in coloring in its development from youth to maturity. The young of the blue ring angelfish are at first a dark blue, almost black, with broad turquoise and white vertical stripes. Adults will exhibit a violet coloring with semicircular marks on the middle of the body.

In the aquarium blue ring angelfish are algae grazers but consume fish and coral flesh as well. They are known to eat shrimps and nibble on both large polyped stony and small polyped stony corals. Overall most seasoned reef aquarists do not recommend keeping this species in a reef aquarium due to these habits.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Perciformes
Family
Pomacanthidae
Genus
Pomacanthus
Species
Pomacanthus annularis

Common names

  • English:
    • Blue ring angelfish
    • Blue-ringed angelfish
    • Ringed angelfish

Synonyms

  • Pomacanthodes annularis, Marcus Elieser Bloch (1787)
  • Chaetodon annularis, Marcus Elieser Bloch (1787)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Photos

Blue ring angelfish
Blue ring angelfish

Range Map

Range map of Pomacanthus annularis in Thailand