The video shows a large aquarium with a school of fish swimming in it. The fish are mostly silver in color, with some having black stripes. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish. There are several people standing in front of the aquarium, watching the fish swim by. Some of them are taking photos or videos of the fish with their phones. The fish are swimming in different directions, some close to the glass and others further away. The aquarium appears to be indoors, as there are no windows or natural light visible.