The video shows a group of small fish swimming in a tank of water. The fish are mostly red and white in color, with some having black stripes. They are swimming around a large white shell that is sitting in the center of the tank. The shell has a spiral shape and appears to be made of a hard material. The water in the tank is clear, allowing for a good view of the fish and the shell. There are no other objects or decorations in the tank, and the background is not visible. The fish are moving around the shell, occasionally swimming close to the camera, giving a clear view of their features.