The image is an underwater photograph of a fish swimming on a coral reef. The fish is a type of fish, specifically a parrotfish, with a blue body and a yellow dorsal fin. It has a long, slender body with a pointed snout and a pointed tail. The body of the fish is covered in small, dark spots, and its fins are a lighter shade of blue. The coral reef is covered with small rocks and coral, and there are a few small fish visible in the background. The water is clear and the sunlight is filtering through the surface, creating a beautiful reflection on the coral.