Centropyge argi
Spot the Caribbean's tiniest angelfish in Soufriere, Saint Lucia or Les Anses-d'Arlet, Martinique. Identification tips and where divers log it most.
One of the smallest angelfish you will encounter on a Caribbean reef, the cherubfish is predominantly deep indigo-blue with a striking orange-yellow face and chest that makes it surprisingly easy to pick out once you know what you are looking for. The body is oval and laterally compressed, typical of angelfish, but its small size sets it apart from almost every other angelfish in the region. Look for it close to the reef structure, often hovering near crevices or under ledges. Juveniles resemble adults, which removes one common ID complication.
Cherubfish tend to stay close to the reef, darting in and out of small crevices and rarely venturing far into open water. They are shy and quick to retreat when approached, so slow, patient movement pays off far more than chasing. Most sightings involve solitary individuals or loosely associated pairs grazing on algae and encrusting organisms on hard coral surfaces.
Like most angelfish, the cherubfish is a protogynous hermaphrodite (born female, able to change to male), with dominant males typically holding small harems of females in a defined home territory.
No strong seasonal pattern emerges from the available data, and with observed water temperatures sitting in the 26.5 to 28.8 °C range across these sites, the cherubfish appears to be a year-round resident on its Caribbean reefs.
The cherubfish is firmly a Caribbean species, with the strongest concentration of sightings across Saint Lucia and Martinique. Soufriere in Saint Lucia and Les Anses-d'Arlet in Martinique together account for the bulk of logged encounters, while the Soufriere-Scotts Head Marine Reserve in Dominica and Carriacou in Grenada round out the best spots. Bonaire and the Iles des Saintes in Guadeloupe also have confirmed sightings, so any well-developed eastern Caribbean reef dive is worth a careful look.
Mapping where Cherubfish is logged…
Most sightings come from the eastern Caribbean, particularly Soufriere in Saint Lucia and Les Anses-d'Arlet in Martinique. The Soufriere-Scotts Head Marine Reserve in Dominica is also a reliable area, with further records from Grenada, Guadeloupe, and Bonaire.
There is no clear seasonal peak in the sighting data. Water temperatures across its Caribbean range stay consistently warm, so cherubfish appear to be present on the reef throughout the year.
Look for a very small, oval angelfish with a deep blue body and a bright orange-yellow face and chest. Its tiny size compared to every other angelfish on Caribbean reefs is often the first clue. It tends to hover close to coral structure and retreats quickly into crevices when approached.
Cherubfish are among the smallest angelfish in the Atlantic, typically reaching only around 8 cm in length. On the reef this makes them noticeably petite, so scanning close to the reef surface rather than the water column is the best strategy.
Sighting data rates them as uncommon at the vast majority of sites where they are recorded. They are not impossible to find, but their shy behaviour and small size mean you need to look carefully along the base of the reef and into crevices rather than waiting for them to come to you.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Rock Beauty
1,573 sites
