The video shows a fish swimming in a tank. The fish is yellow and white and is seen swimming around the tank. The tank is made of glass and has a black background. There are no other fish or objects in the tank. The fish appears to be the only living creature in the tank. The fish moves around the tank, sometimes coming close to the camera and other times swimming away. The water in the tank is clear and there are no visible plants or decorations. The fish seems to be healthy and active.