Here's a detailed description of the video: The video shows an aquarium. Inside the tank, a large silver fish with a forked tail is swimming slowly to the left. There are also several smaller orange fish and other darker-colored fish in the tank. The bottom of the tank is covered in sand and there are rocks and driftwood scattered around. Behind the aquarium glass, reflections of other aquariums and people are visible. A person wearing a light-colored jumpsuit can be seen walking by the aquariums in the background. The overall setting appears to be a public aquarium or zoo.