Scarus iseri reaches 35 cm. Most common parrotfish of Caribbean reefs. Females and juveniles white with 3 distinctive longitudinal black bands, terminal males blue-green with yellow-green snout and electric-blue lines on head. Protogynous hermaphrodite. Lives in mixed schools from 0 to 25 m on coral reefs and seagrass of Caribbean. Herbivore grazing algae, contributes to bioerosion. Spearhead species for Caribbean reef health. Common but essential photo subject.
