Common name: Hedgehog butterflyfish

General information

The Crescent-tail Bigeye, scientifically known as Prognathodes dichrous, is a captivating species of butterflyfish. It is less commonly seen in the aquarium trade compared to other butterflyfish due to its deeper water habitat and specific care requirements. This species is distinguished by its deep body, bright yellow coloration, and the two prominent black bands that run vertically across its body, giving rise to its alternate name, Doubleband Butterflyfish.

Care

Prognathodes dichrous requires a well-established aquarium with plenty of live rock for grazing and hiding. They are not considered reef-safe as they may nip at corals and sessile invertebrates. A varied diet of meaty foods, including mysis shrimp, brine shrimp, and other finely chopped seafood, is essential for their health. They are best kept in a peaceful community with other non-aggressive fish.

Reproduction

In the wild, Prognathodes dichrous forms monogamous pairs during the breeding season. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. Raising the larvae in captivity is challenging due to their planktonic stage and specific feeding requirements.

Habitat

This species is typically found in deeper waters ranging from 30 to 150 meters, often associated with steep outer reef slopes and drop-offs. They are distributed across the Western Atlantic, including the Gulf of Mexico, the Caribbean Sea, and the northern coast of South America.