The video shows a black goldfish swimming in a tank with gravel on the bottom. The fish has a large, flowing tail and fins. It is joined by two other goldfish, one orange and one white, which are also swimming in the tank. The black goldfish is seen swimming around the tank, occasionally coming close to the camera. The other two goldfish are also seen swimming around the tank, occasionally coming close to the camera. The tank appears to be well-lit, and the water is clear. The video does not contain any visible title, subtitle, or other informative text.