The video shows a close-up view of a fish tank with various corals and anemones. The tank is illuminated with blue light, which highlights the colors of the corals. The camera pans around the tank, showing different angles and perspectives of the corals. The corals come in various shapes and sizes, and some are attached to rocks while others are free-standing. The water in the tank is clear, and there are no visible fish or other marine life. The tank appears to be well-maintained and clean.