The comet grouper or blue grouper (Epinephelus morrhua) is a deep water fish found from the Red Sea and eastern Africa to the central Pacific Ocean. It is found near coral reefs at depths from 80 to 370 m (260-890 feet) and is non-migratory. It is sometimes confused with its relatives E. poecilonotus, E. radiatus, and E. tuamotoensis. Although it is reported to be a gamefish, it is not commonly seen in markets. It has also been associated with ciguatera poisoning.