Eastern Triangular Butterflyfish (Chaetodon baronessa)

Quick facts

Appearance

Chaetodon baronessa displays the distinctive triangular body shape characteristic of butterflyfish, with a yellow-gold coloration across the head, dorsal fin, and anal fin. A prominent black diagonal stripe runs from the nape through the eye, and the rear body and tail are marked with dark vertical bars and a dark posterior margin, creating a striking high-contrast pattern.

Diet and feeding

In captivity, offer a varied diet including high-quality marine flakes, small pellets, frozen mysid shrimp, and finely chopped seafood. Supplement with vegetable matter such as spirulina or nori sheets. Feed twice daily in appropriate portion sizes.

Difficulty and care for the Eastern Triangular Butterflyfish

Moderate difficulty. The Eastern Triangular Butterflyfish requires stable water conditions, a varied diet, and careful acclimation, but is more hardy than some other butterflyfish species when properly established in a mature reef system.

Common health issues

Marine velvet, ich, parasitic infections, fin rot

Origin and habitat

Indo-Pacific region from the Great Barrier Reef and Indonesia eastward to the Line Islands and Marshall Islands, primarily in tropical coral reef environments.