The video displays a large aquarium with a variety of colorful corals and fish. The aquarium is illuminated with blue and purple lights, which enhance the vibrant colors of the corals. The corals come in different shapes and sizes, with some resembling brains, others resembling branches, and some resembling boulders. The fish are swimming around the corals, and the water is clear and clean. The aquarium appears to be well-maintained and thriving.