Common name: paleface butterflyfish

General information

The Fiji Butterflyfish, scientifically known as Chaetodon mesoleucos, is a striking species known for its distinct black and white coloration. This species is part of the large butterflyfish family, which is appreciated for their vibrant colors and patterns. The Fiji Butterflyfish is not as common in the aquarium trade as some other butterflyfish, but it can be a rewarding addition for experienced aquarists.

Care

Chaetodon mesoleucos requires a well-established aquarium with plenty of live rock for grazing and hiding. They are not the easiest species to keep due to their dietary requirements. In the wild, they feed on coral polyps, benthic invertebrates, and algae. In captivity, they should be offered a varied diet including marine algae, mysis shrimp, and other meaty foods, as well as foods designed for marine herbivores.

Reproduction

Like many marine fish, the Fiji Butterflyfish is an egg scatterer, releasing eggs into the water column where fertilization occurs. The eggs are pelagic, drifting with the currents until hatching. Breeding them in captivity is challenging and not commonly done by hobbyists.

Symbiosis

While not known for any specific symbiotic relationships like clownfish with anemones, butterflyfish do play a role in the reef ecosystem by controlling algae and invertebrate populations, which can be beneficial in a balanced aquarium setup.

Habitat

The natural habitat of Chaetodon mesoleucos includes coral reefs and lagoons in the Western Pacific, particularly around Fiji, New Caledonia, and Vanuatu. They are typically found at depths ranging from shallow waters to about 30 meters.