Blue rippled triggerfish
Shaab Mohamad, Hamata (2009).
An aggressive fish that will bite if approached. It can grow up to 55 cm. The body has a brown background with blue, but fins have yellow margins. Juveniles are yellowish brown with a network of brilliant bluish wavy lines. With growth these lines become interconnected.

"Pseudobalistes fuscus", common names blue triggerfish or rippled triggerfish, yellow-spotted triggerfish and blue-and-gold triggerfish, is a fish belonging to the family Balistidae.
Similar species: Box, Puffer And Trigger Fishes
By Patomarazul
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Uploaded Aug 7, 2016. Captured Nov 12, 2009 13:36 in Halayeb We Shalateen Rd, Qesm Marsa Alam, Red Sea Governorate, Egypt.