Common name: reef butterflyfish

General information

The Reef Butterflyfish, Chaetodon sedentarius, is a small and colorful species that is a popular choice among saltwater aquarium enthusiasts. It is known for its striking coloration, with a yellow body, dark vertical bands, and a distinctive 'eyespots' on the dorsal fin that may help to confuse predators. This species is relatively hardy and can be a good choice for a fish-only or a larger reef aquarium with peaceful tank mates.

Care

Reef Butterflyfish are moderately easy to care for but they do have some specific dietary requirements. They primarily feed on benthic invertebrates in the wild, so a diet that includes a variety of meaty foods such as mysis shrimp, brine shrimp, and prepared foods for marine fish is essential. They may also accept some vegetable matter. It's important to provide them with plenty of space to swim and some rockwork or coral for hiding and sleeping.

Reproduction

In the wild, Chaetodon sedentarius is an oviparous species, with pairs forming during the breeding season. They engage in a courtship dance before spawning, releasing eggs and sperm into the water column. The eggs are pelagic, drifting with the currents until hatching. Breeding them in captivity is challenging and not commonly done by hobbyists.

Habitat

The Reef Butterflyfish is native to the Western Atlantic, from North Carolina in the USA to the Bahamas, Gulf of Mexico, and south to Brazil. They are typically found in coral and rocky reefs, often in pairs or small groups, and can be seen at depths ranging from 3 to 55 meters (10 to 180 feet).