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Koran Angel : J

00200

Angels
Koran Angel : J
Pomacanthus semicirculatus
  • Description
  • Care Sheets
Care: 
Beginner
Diet: 
Omnivorous
Light: 
Medium
Place of origin: 
Western Indian Ocean
Widespread Indo-west Pacific, from East Africa to Fiji, north to Chiba Pref. Japan and south to central NSW, Australia. Occurs on mixed coral or rocky coastal reefs from intertidal to at least 40m depth. The species is hardly shy in most places, and usually seen singly, very rarely in pairs. Juveniles are cryptic when very small and usually  in algae rich crevices at depths of 1 or 2m. Adults have electric-blue opercular  margins and fin margins that adorn the brownish green body. Juveniles are totally different in colour with backward-curving vertical blue and white lines, which are almost semicircular on the posterior third of the body. In the Western Indian Ocean this angelfish is also called "Koran angelfish" due to the Arabic script-like pattern on the median fins of large juveniles. Colouration changes from juvenile to adult patterns start at a body length of about 10cm. Length to 40cm, common about 30cm.
The members of the family Pomacanthidae are generally know as angelfishes and, like their nearest cousins, the butterflyfishes, are regarded by many divers and aquarists as being amongst the most beautiful and majestic fishes in the sea. The majority of species occur on shallow reefs in coral, algae and sponge zones, most going little deeper than about 30m but  where conditions are pristine and water is very clear, many species go much deeper and few species only live deep (over 100m). Angelfishes feature a large and distinctive backward-protruding spine from the lower corner of the gill-plate (cheek spine) from which the family name  was derived. This cheek-spine is diagnostic for all the species , even at juvenile stage, and readily separates any angelfishes from butterflyfishes that may be similar in shape. Mot angelfishes are robust with compressed, ovate to rhomboid shaped bodies, covered with small or tiny scales, and have a continuous dorsal fin. The mouth is small and jaws are set with many small, usually tricuspid teeth that are used for grazing algae or scraping sponges and other sessile invertebrates. Few species combine their diet with a variety of foods and some are planktivores.

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