Rock Beauty Angelfish

The Rock Beauty Angelfish is a small but strikingly colored angelfish found on coral and rocky reefs throughout the Caribbean and western Atlantic. Adults display a bold two-tone pattern, with a bright yellow head and forebody contrasting sharply against a black rear body and tail, finished with thin blue edging along the fins. Juveniles look quite different, appearing almost entirely bright yellow with only a small black spot ringed in blue near the rear dorsal fin, which expands into the adult's black rear coloration as the fish grows. Rock Beauties are often solitary and somewhat shy, darting quickly between coral heads, sponges, and rocky ledges, and they can be more challenging to spot consistently on the reef compared to some other angelfish species.

• Adults: bright yellow front half, black rear half and tail, thin blue fin edging
• Juveniles: almost entirely yellow with a small blue-ringed black spot near the rear dorsal fin
• Body shape: deep, disc-shaped, typical angelfish profile
• Behavior: quick, darting movement between reef crevices, more skittish than larger angelfish species

The sharp yellow-to-black color division is unique among Caribbean angelfish, making adult Rock Beauties difficult to confuse with any other species in their range; juveniles are sometimes mistaken for other small yellow reef fish until the developing black spot becomes visible.

Rock Beauty Angelfish are found throughout the Caribbean Sea, Gulf of Mexico, and western Atlantic from Florida south to Brazil, typically inhabiting coral reefs, rocky reefs, and areas with abundant sponge growth. They occur from shallow water down to about 30 meters and favor reef environments with plenty of crevices, ledges, and overhangs offering quick shelter. The species tends to be more common around high-relief reef structure rather than open sand or rubble flats, since cover is important for this comparatively shy angelfish.

Rock Beauty Angelfish feed primarily on sponges, along with algae and other small invertebrates picked from reef surfaces. They are generally solitary, more so than many other angelfish, and tend to be wary, darting for cover among coral and rocky crevices when approached. Unlike some angelfish that form stable pairs, Rock Beauties are more often encountered alone, though loose associations can occur during spawning periods. Spawning follows the typical angelfish pattern of a brief pelagic egg-release rush into the water column, usually occurring around dusk during warmer months.