Overview
- Native to the Red Sea and western Indian Ocean, commonly inhabiting coral reefs and rocky reef slopes.
- Recognizable by its striking coloration: a deep blue-black body with a bold vertical yellow band and yellow tail fin.
- Juveniles display a unique coloration of dark blue with thin vertical white stripes.
- Known to exhibit territorial behavior and active personality in aquarium settings.
Feeding
- Primarily omnivorous; natural diet consists of algae, sponges, tunicates, corals, and small invertebrates.
- Accepts varied foods in aquariums, including angelfish-specific diets, marine algae, mysis shrimp, brine shrimp, and finely chopped seafood.
- Requires multiple daily feedings to ensure optimal health and coloration.
- Sponge and algae-based supplements are essential for nutritional balance.
Habitat
- Needs a spacious aquarium (minimum 180 gallons [681 L]) with plenty of swimming space and live rock structures for territory and shelter.
- Thrives best in a mature and stable aquarium environment.
- Live rock structures providing hiding spaces and territories are essential.
- Requires strong filtration and moderate water circulation for optimal health.
Fish Care
- Ideal water temperature: 74-79°F (23-26°C).
- Recommended pH: 8.1–8.4; specific gravity: 1.025–1.026 (about 33–35 ppt).
- Sensitive to poor water quality; regular water testing and frequent water changes necessary.
- Prone to marine parasites; vigilant monitoring and proactive care are important.
Compatibility
- Semi-aggressive; best housed with similarly sized and temperament-compatible fish.
- Territorial towards other angelfish or similarly shaped and colored species.
- Not reef-safe; likely to nip at corals, sponges, and ornamental invertebrates.
- Suitable companions include large tangs, groupers, wrasses, and other robust marine species.
Aquarium Behavior
- Active swimmer and displays assertive territorial behavior.
- Juveniles are shy initially but become bolder and more assertive with age.
- Often interactive, especially during feeding times, recognizing caretakers readily.
- Providing adequate hiding places and enrichment can significantly reduce stress and aggression.
Frequently Asked Questions
What does an Arabian Angelfish look like?
It has a dark blue to purple body with a black face, a bright yellow tail and a broad yellow crescent across the middle of the body. It is also sold as the Asfur or Crescent Angelfish.
How is the Arabian Angelfish different from the Maculosus Angelfish?
The two are often confused. Look at the tail: the Arabian Angelfish is the one with the bright yellow tail.
How big does an Arabian Angelfish get?
It reaches up to about 15.7 in (40 cm).
What size tank does an Arabian Angelfish need?
At least 180 gallons (681 L). It needs plenty of hiding places and live rock to graze on, because it is a shy fish.
What does an Arabian Angelfish eat?
Wild adults feed mainly on sponges and tunicates. Offer a mix of vegetable foods, meaty foods and angelfish preparations that contain sponge.
Is the Arabian Angelfish reef safe?
With caution. It nips stony and soft corals and clam mantles, though it can often live with small-polyp stony corals and the more noxious soft corals.
Can I keep two Arabian Angelfish together?
Usually not. It is very aggressive toward its own kind unless the two are a pair, so keep just one.
Do juvenile Arabian Angelfish look different?
Yes. The juvenile's colors differ markedly from the adult's, as in several other Pomacanthus angelfish.
Can you tell male and female Arabian Angelfish apart?
No. The sexes look the same, and it is very difficult to breed in an aquarium.
Where does the Arabian Angelfish live in the wild?
It is found in the Western Indian Ocean, from the Red Sea and Gulf of Aden south to Zanzibar. It lives on semi-protected inshore reefs with rich coral growth, at about 10 to 100 ft (3 to 30 m) in water of about 72 to 81°F (22 to 27°C).

