This small fish gets its name from the grunting noise it makes by grinding its teeth together like other grunts do. It has a tall, flat body, with yellow and blue-silver stripes and two black bars running downwards over its eyes and just behind its cheeks. Yellow also highlights its face and fins, including its deeply forked caudal (tail) fin. This nocturnal schooling fish can grow to 15 inches long and 2 pounds, but usually is found much smaller.
