Passer Angelfish

Males and females are visually identical. They do, however undergo significant changes in coloration and to a lesser degree shape as they mature. Juvenile king angelfish are primarily yellow, with fins rimmed with iridescent blue, blue striping towards the posterior of their bodies, and an orange mask around the eye. Sexually mature king angelfish, on the other hand, have mostly brown or blue bodies (depending on the light) with the same blue rimming around the fins and a yellow tail.^[3] King angelfish generally grow to 35 cm long. They have between 18 and 20 rays in their dorsal fin and each of their pectoral fins, and 17 to 19 in their anal fin. They also have a strong spike under their lower cheek for defensive purposes.