Jordi Chias / Potato cod (Epinephelus tukula) Zavora Coast, Mozambique, Indian Ocean.

Juergen Freund / Potato grouper / cod (Epinephelus tukula) Indo-pacific

Juergen Freund / Potato grouper (Epinephelus tukula), Rowley Shoals, Western Australia

Georgette Douwma / Potato grouper (Epinephelus tukula) Great Barrier Reef, Australia

Juergen Freund / Potato grouper / cod {Epinephelus tukula} Great Barrier Reef, Queensland, Australia

Jordi Chias / Potato cod (Epinephelus tukula) Pomene Coast, South Mozambique, Indian Ocean, South-East Coast.

Jordi Chias / Potato cod (Epinephelus tukula) with school Blueline snappers (Lutjanus kasmira) Tofo Coast, Mozambique, Indian Ocean. South-East Coast.

Jordi Chias / Potato cod (Epinephelus tukula) Tofo Coast, Mozambique. Indian Ocean.

Franco Banfi / Potato cod grouper (Epinephelus tukula), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Tony Wu / Potato cod (Epinephelus tukula) being cleaned by Bluestreak cleaner wrasse (Labroides dimidiatus) Carl's Ultimate dive site in the Eastern Fields of Papua New Guinea

Tony Wu / Potato cod (Epinephelus tukula) being cleaned by Bluestreak cleaner wrasse (Labroides dimidiatus) Carl's Ultimate dive site in the Eastern Fields of Papua New Guinea

Pete Oxford / Potato cod (Epinephelus tukula) investigating diver with Blacktip Trevally (Caranx heberi) in background, on baited shark dive. Umkomaas. KwaZulu Natal, South Africa.