In the same family as the goldsinny wrasse, the rock cook wrasse (Centrolabrus exoletus) is a small, colourful fish commonly found among rocky reefs and seaweed-covered shores around the United Kingdom. Typically growing to around 10–15cm in length, it has a slender body with variable colouring, often showing warm reddish-brown or orange tones with lighter markings.
Rock cook wrasse feed on small invertebrates such as crustaceans and molluscs, picking food from rocks and algae. Well adapted to life in kelp forests and rockpools, they are agile swimmers that use their surroundings for shelter.
Like many wrasse species, rock cook wrasse can change sex during their lifetime, beginning life as females and later becoming males depending on social conditions. Normally happens 4-6yrs. Also they are agrastric meaning they don't have a stomach. To aid physical digestion they have 2 sets of teeth one in their mouth and the other in their throat.