The video shows a close-up view of a coral reef in an aquarium. The corals are in various colors, including pink, purple, and green. The corals are of different shapes and sizes, some resembling branches while others are more dome-shaped. The water is clear, and the lighting is dim, creating a serene underwater atmosphere. There are no fish or other marine creatures visible in the video. The camera slowly pans across the reef, allowing viewers to appreciate the intricate details of the corals.