Koran Angel (Cuvier, 1831)
| Scientific Name | Pomacanthus semicirculatus |
| Diet | Herbivore; algae, sponges, tunicates |
| Alt Common Name | Guingham de fond (Creole), Halfsirkel-engelvis (Afr.), Sazanami-yakko (Jap. 'ripple valet') |
| Family | Pomacanthidae |
| Origin | Indian, Pacific, and Red Sea |
| Aquarist Level | Intermediate |
| Reef Safe | With Caution |
| Coloration | Brown with Yellow/Green band, Yellow highlights |
| Disposition | Generally Peaceful. |
| Hardiness | Moderate |
| Compatibility | Peaceful with other species. Aggressive with own species |
| Mature Size | 18 inches |
| Sexual Dimorphism | Males tend to have brighter coloration. |
Notes: Large angels may nip at soft or hard corals. Caution is advised when adding to a reef aquarium. A larger aquarium (75 to 125 gallon plus) is recommended for housing large angels.
All Pomacanthus angels undergo a color change between the juvenile and adult stages of life. The Koran Angel changes colors at a size of 4 to 8 inches in length.