Palette Surgeonfish Identification Guide

Key identification features

• Vivid royal-blue body with an oval, laterally flattened shape
• Bold black "palette" pattern sweeping down the flank and curving around the belly
• Bright yellow, triangular tail fin that stands out sharply against the blue body
• Fine black outlining along the dorsal and anal fin edges
• White, retractable scalpel spine tucked at the base of the tail
• Modest adult size, usually well under 31 cm

Common look-alikes

Powder blue tang is a similar shade of blue but shows a black facial mask and a yellow-edged dorsal fin rather than a black flank pattern. Blue damselfish can share the color but have a rounder body, no tail-base spine, and lack the yellow tail entirely. Juvenile palette surgeonfish are an even deeper blue with a smaller, less developed black pattern than adults, which can make young fish look slightly different from mature ones.

Where you'll see one

This species favors outer reef slopes and drop-offs across the Indo-Pacific, typically hovering near branching coral heads at depths of about 2 to 40 meters, alone or in small loose groups seeking shelter among the branches when threatened.