The video shows a large aquarium filled with a variety of fish. The fish are swimming around in the water, and the camera pans around the tank to show different angles. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish. The fish vary in size and color, with some being brightly colored and others more subdued. The tank appears to be located indoors, and there are no other objects or people visible in the video.