Potato cod (Epinephelus tukula) being cleaned by cleaner wrasse (Labroides dimidiatus), Cod Hole, Great Barrier Reef, Queensland, Australia, Pacific

photography colour colour image color color image travel destination travel destinations travel horizontal horizontal image day nobody no one no one potato cod epinephelus tukula potato grouper potato bass cod hole north ribbon reef great barrier reef queensland australia australian pacific pacific ocean the pacific unesco unesco world heritage site world heritage site underwater nature natural animal themes animal animals fauna sealife marine life animalia chordata actinopterygii perciformes serranidae epinephelus fish water animal side view blue streak cleaner wrasse labroides dimidiatus cleaner wrasse feeding labridae labroides reef fish