Cleaning symbiosis that develop between small and larger marine organisms often represent models useful for studying the evolution of stable social interactions and cheating. In the cleaning fish Labroides dimidiatus (Bluestreak cleaner wrasse), as in many cleaner species, client fish seeks to have ectoparasites removed by the cleaners. In these situations, instead of picking off the parasites on the surface of the client fish, the cleaner can cheat by feeding on the client’s tissue (mucus layer, scales, etc.), thereby gaining additional benefit from the symbiotic system.[15] It has been well documented that cleaners will feed on mucus when their clients are unable to control the cleaner’s behavior; however, in natural settings, client fish often jolt, chase after cheating cleaners, or terminate interactions of swimming way, effectively controlling the cheating behavior.[15][16][17] Studies on cleaning mutualisms generally suggest that cheating behavior is often adjusted depending on the species of the client.