The Cleaner Wrasse operates by feeding on crustacean parasites and mucus of other fishes and other fish species that visit the Cleaner Wrasse for a cleaning. These cleaning station are generally occupied by a pair of adults or a group of juveniles of females. Each group will have a dominant male and if this male disappears the largest female will change to become a male. This species is very territorial and will stay in the same location for a long period of time. It is known to occur from depth of 1 to 40 metres. The Cleaner Wrasse (Labroides dimidiatus) grows to approximately 10cm in length.