Pomacanthus xanthometopon

The next position on the list of the most beautiful saltwater fish is the Pomacanthus xanthometopon which is a marine angelfish with ray fins that can be found in shallow areas of the Indo-Pacific. It is a member of the family Pomacanthidae. Due to its stunning facial coloring, it is often referred to as the Blueface angelfish or the yellowface angelfish.

Pomacanthus xanthometopon is laterally compressed and has a maximum length of 38 centimeters. The mouth is situated directly above the snout's tip. The fins are large, circular, and golden, with blue edges on some of them. The dorsal fin has 13–14 spines and 16–18 soft rays, is situated just in front of the caudal area and has a conspicuous black eyespot at its base. The anal fin comprises 16–18 soft rays and 3 spines. The scales have a reticulated pattern and are a light blue color with golden edges.

The face is yellow with a yellow mask covering the eyes and a lower half covered in a thick network of dazzling blue lines. The coloring of juveniles is significantly distinct, with a caudal fin banded in two colors of blue and six vertical white bars separated by pale blue lines.