The image is an underwater photograph of a large group of fish swimming in an aquarium. The water is a deep blue color and the fish are of various sizes and colors, including black, yellow, and white. The fish are swimming around a large rock formation on the left side of the image, which appears to be part of a cave. The rock formation is dark and rocky, and there are several smaller fish visible in the background. The image is taken from a low angle, looking up at the fish and the rock formation. The sunlight is shining through the water, creating a bright blue light that illuminates the scene.