The video captures a group of fish swimming in a tank. The fish are of different sizes and colors, with some having blue and yellow stripes, while others are solid blue or yellow. The fish are seen swimming around the tank, occasionally coming close to the camera. The tank appears to be well-maintained, with clear water and no visible debris. The fish seem to be healthy and active, with no signs of distress or aggression. The video provides a close-up view of the fish, allowing for detailed observation of their features and movements.