Social grooming, cleaning services offered between members of the same species.
fish | Reel Big Fish | United States Fish and Wildlife Service | Janet Fish | Mardy Fish | Fish Creek, Wisconsin | So Long, and Thanks for All the Fish | Flying Fish Cove | Fish and chips | Rumble Fish | Little Fish | Fish Creek | Fish | vacuum cleaner | Stuyvesant Fish | Stanley Fish | Kettle of Fish | Fish ball | A Fish Dinner in Memison | A Fish Called Wanda | Morris Fish | Little Fish (film) | Fish marketing | Fish hook | Whiting (fish) | United States Fish Commission | Too Many Fish in the Sea | Siamese fighting fish | Great Fish River | Fish Hooks |
In this behaviour cleaner shrimps resemble cleaner fish, and sometimes actually may be seen to join cleaner wrasse and other cleaner fish attending to client fishes.