The image is an underwater photograph of a group of small yellow fish swimming in an aquarium. The fish are swimming near a coral reef with various types of coral and other marine life. The background is dark, making the colors of the coral and fish stand out even more. In the center of the image, there is a single yellow fish, which appears to be a type of fish, swimming towards the right side of the frame. The coral reef is covered in various shades of green and brown, and there are a few smaller fish visible in the background. The image is taken from a low angle, looking up at the fish and the reef.