Frequently Asked Questions
The most-asked questions about Yellowfin angelfish.
What is a Yellowfin angelfish?
The Yellowfin angelfish (Pomacanthus maculosus) is a large, vividly colored reef fish in the family Pomacanthidae, native to the western Indo-Pacific. It is one of the most striking species in the angelfish group, instantly recognizable by its electric-blue body and bright yellow-tipped dorsal and anal fins.
Where do Yellowfin angelfish live in the wild?
They are found on coral reefs stretching from Japan and the Philippines south through Indonesia and into northern Australia. They typically patrol the outer reef slopes and lagoon areas at depths of roughly 5 to 60 meters.
How large does a Yellowfin angelfish grow?
Adults can reach a total length of about 60 centimeters (roughly 24 inches), making them one of the bigger reef-dwelling angelfish. They grow substantially as they mature, with juveniles being a fraction of the adult size.
What does a Yellowfin angelfish eat?
Their primary food source is reef sponges, which they pick off the substrate with their small, toothed mouths. They also take in small invertebrates, algae, and organic detritus while foraging along the reef.
What does a Yellowfin angelfish look like?
Adults display a brilliant blue body with a large yellow patch on the operculum, yellow-tipped dorsal and anal fins, and a yellow caudal fin. Juveniles look dramatically different, showing a dark body with a bold yellow bar across the eye and a yellow tail.
Can you keep a Yellowfin angelfish in a home aquarium?
They are widely regarded as very challenging for hobbyist aquarists because of their large adult size, specialized sponge-based diet, and aggressive territoriality. Successful long-term keeping is mostly limited to large public aquariums with extensive live-reef systems.
What is the scientific classification of the Yellowfin angelfish?
Its binomial name is Pomacanthus maculosus, placed in the family Pomacanthidae within the order Acanthuriformes. The species was formally described by the Dutch naturalist Pieter Bleeker in 1852.
How do Yellowfin angelfish behave socially?
They are generally solitary or encountered in small pairs, and adults can be quite aggressive toward other angelfish and similarly sized reef fish. They establish and defend a home territory on the reef, with territorial disputes becoming more intense during the breeding season.
How do Yellowfin angelfish reproduce?
Like many marine angelfish, they are protandrous hermaphrodites, beginning life as males and later transitioning to females. Spawning occurs in open water, where the pair releases millions of tiny, buoyant eggs that disperse with the current.
What is the conservation status of the Yellowfin angelfish?
The IUCN currently classifies the species as Least Concern, reflecting its broad geographic range and relatively stable populations. Localized threats from coral-reef degradation and targeted collection for the live-fish trade remain concerns in parts of its range.