The video features a group of fish swimming in a tank. The fish are light-colored, possibly white or pale yellow, and have long, flowing fins. They move gracefully through the water, 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 of the same species, and there are no other types of fish or objects in the tank. The lighting is bright, and the background is a solid blue color, which contrasts with the light color of the fish.