paracanthurus hepatus - Robuta Search

https://fishfinder.fr/chirurgien-bleu-paracanthurus-hepatus/

- Chirurgien Bleu (Paracanthurus hepatus)

https://aquariumbase.blogspot.com/2022/10/regal-tang-palette-surgeonfish.html

Regal tang, is one of the most popular and common marine fish. The striking coloration and patterning have made it a firm favorite with aquarists.