Blue-streak Cleaner Wrasse (Labroides dimidiatus)

In certain locations around the reef, often over the top of prominent corals such as is the case here, cleaner wrasse will set up a cleaner station. Fish become habituated to this and display over the station by spreading their fins and changing colour indicating they wish to be cleaned. The cleaner wrasse swim up and oblige getting a free meal in the process as they clean parasites, dirt and the fishes wounds.