During my visit, these groupers was labelled as Epinephelus clippertonianus, with no signage about a Mycteroperca in this tank (the tank with shipwreck and injured loggerhead turtle). The pattern is different to Clipperton grouper but I was unable to find any other Epinephelus that match. That's because is not an Epinephelus! Big thanks for finally let me know the correct ID of this individual!!