The video shows a large fish tank filled with water and various types of fish. The fish are swimming around in the tank, and there are several different colors and sizes of fish visible. The tank appears to be well-maintained, with clear water and no visible debris. The fish are moving around calmly, and there is no sign of aggression or distress among them. The tank is well-lit, and the fish are easily visible. The video does not contain any text or subtitles.