The video shows a close-up view of a coral reef in an aquarium. The reef is illuminated with purple and blue lights, creating a vibrant and colorful display. The camera pans around the reef, revealing various types of coral, including brain coral, staghorn coral, and sea anemones. The coral exhibits a range of colors, including purple, green, and yellow. The camera also captures a few fish swimming around the reef, including a yellow tang and a blue tang. The water is clear, and the reef appears healthy and well-maintained.