A cleaner wrasse attends to an adult grey sweetlips at a cleaning station at Hani Faru in Maldives. During the day this cleaning station is frequented by mantas that come into the small bay to feed. But during dusk once the celebrities depart, its the turn of all the other regular citizens of the area. When a fish approaches a known cleaning station, cleaner wrasses will get to work grooming their 'clients', picking away at dead skin and removing pesky parasites. And unlike human doctors or salons the only payment they ask for is a tasty snack!
Check out a previous post of a moray eel being cleaned in Negombo, Sri Lanka