The video shows a close-up view of a coral reef in an aquarium. The reef is home to a variety of corals, including a large anemone with long, flowing tentacles in the foreground. Behind the anemone, there are several types of coral, including branching corals and brain corals. The colors of the corals range from deep purples and blues to bright greens and yellows. The water is clear, and the lighting highlights the vibrant colors of the corals. There are no fish or other marine animals visible in the video.