Big Eye Emperor (Monotaxis Grandoculis) can reach a length of 60 cm, which is about 23 inches.
Fully grown adults have a large rounded head, thick lips, silver grey body with dark scale margins, and fins with red margins.
Some species can rapidly change their colour. There are eleven species of the Lethrinidae dynasty in the Red Sea.
I have seen and photographed this exciting fish only a few times in the Red Sea.