The video shows a close-up of a fish swimming in a fish tank. The fish is moving around in the water, and the camera is focused on it. The fish tank appears to be well-maintained, with clear water and no visible debris. The fish is of medium size and has a shiny, silver color. It moves gracefully through the water, occasionally coming close to the camera. The lighting in the tank highlights the fish's scales and fins, making them appear iridescent. The background of the tank is blurred, but it seems to be a simple, unadorned tank.