Queen Angel (Linnaeus, 1758)
| Scientific Name | Holacanthus ciliaris |
| Diet | Herbivore; algae, sponges, tunicates |
| Alt Common Name | Isabellita, Golden Angel, Hokuro-yakko (Jap. 'black cheek valet') |
| Family | Pomacanthidae |
| Origin | W. Atlantic |
| Aquarist Level | Intermediate |
| Reef Safe | With Caution |
| Coloration | Blue with Yellow highlights |
| Disposition | Generally Peaceful. |
| Hardiness | Moderate |
| Compatibility | Peaceful with other species. Aggressive with own species |
| Mature Size | 10 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. Juvenile queen angels will eat ectoparasites from other aquarium fish.
Most Holacanthus angels undergo a color change between the juvenile and adult stages of life. The queen angel's color transformation is dramatic.