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Pseudochromis sankeyi, also known as Sankey's Dottyback, is a species of marine fish belonging to the family Pseudochromidae. It is native to the Indo-Pacific region, including the Red Sea, the Maldives, and the Andaman Sea.
Sankey's Dottyback has a bright and striking appearance, with a vivid purple-pink body and a yellow tail fin. It can grow up to 8 centimeters (3 inches) in length.
This species is typically found in coral reef habitats, where it feeds on small crustaceans and fish. It is known for its territorial and aggressive behavior towards other fish, including individuals of its own species.