The story is about a fish with shiny, multi-coloured scales named Rainbow Fish. Soon everyone has one shiny scale, including Rainbow Fish. She has her own personal nickname for Rainbow Fish; she calls him "Barnacle Boy". Rainbow Fish refuses in a very rude manner. Blue&colon; Rainbow Fish's best friend, who is more down-to-earth and thoughtful than Rainbow Fish. Many live in the karst areas, including the Harlequin Rainbow Fish ("Melanotaenia boesemani"). Blue has a crush on her, and Rainbow Fish attempts to bring them together. Swiss author Marcus Pfister's "Rainbow Fish" series has received international acclaim since 1992. In the episode where he arrives to Neptune Bay, Rainbow Fish treats Sherman badly. Rainbow Fish gets annoyed when he insists that they all have to write book reports. "Rainbow Fish" was adapted into a children's animated television series in 1999-2001. Rainbow Fish&colon; The proud, vibrant fish that lives with his parents and sister.