Koran Angelfish

• ExerciseModerate

  An active swimmer that appreciates open swimming space.

• GroomingDemanding tank care

  Demands pristine water — frequent testing and meticulous upkeep.

• Living spaceLarge tank

  Needs a large aquarium — several hundred liters.

• Owner experienceFor experienced owners

  Rewards owners who know the ropes.

• Commitment15–25 years

  Plan for a long, loving relationship.

Health to watch: Ich (white spot) · Parasites · Nutritional deficiency

The Koran or Semicircle Angelfish (Pomacanthus semicirculatus) is an Indo-Pacific species including the Red Sea, growing to about 35 to 40 cm. Juveniles are dark blue-black with semicircular white and pale blue arcs; adults turn olive-brown speckled with blue, with blue-edged fins and the calligraphic markings on the tail that inspired the common name. It needs 700 litres or more at 24-27C, salinity 1.024-1.026, pH 8.1-8.4, with caves for shelter and open water for cruising. Feed sponge-based angelfish preparations, dried algae, mysis, chopped seafood and quality pellets two or three times a day. Among the large angels it is the most forgiving, adapts readily to prepared foods and is often recommended as the first Pomacanthus for a keeper stepping up to a large system. The honest constraints remain: it will sample corals, clams and tubeworms, so it belongs in a fish-only tank, and it grows large enough that the tank must be planned around the adult, not the juvenile.

• How active is a Koran Angelfish?

  Moderate. An active swimmer that appreciates open swimming space.

• How much maintenance does a Koran Angelfish need?

  Demanding tank care. Demands pristine water — frequent testing and meticulous upkeep.

• What tank size does a Koran Angelfish need?

  Large tank. Needs a large aquarium — several hundred liters.

• Is a Koran Angelfish a good fit for first-time owners?

  For experienced owners. Rewards owners who know the ropes.

• How long do Koran Angelfish live?

  15–25 years. Plan for a long, loving relationship.

• What health issues affect the Koran Angelfish?

  Keep an eye out for Ich (white spot), Parasites, Nutritional deficiency. These are worth raising with your vet, along with any screening they recommend.

Be the first to join this community!