The sweetlip emperor (Lethrinus miniatus), also referred to as the sweetlip swoose, is a fish of the Lethrinidae family. It can be found on coral reefs and moderately warm waters in the Western Pacific Ocean, although its primary habitat is the Great Barrier Reef. It can also be found in the coastal regions in the centre of Western Australia. Sweetlip emperors are carnivorous predators in the reef; however, their main prey are small crustaceans such as crabs, as well as sand dollars and small fish. They also eat most other organisms that live near the bottom of the reef.