The video shows a fish swimming in a tank. The fish is light brown in color with a white underbelly and long, flowing fins. It swims gracefully through the water, occasionally turning and twisting its body. The tank appears to be well-maintained, with clear water and no visible debris. The fish moves effortlessly, its fins undulating gently as it navigates the space. The lighting in the tank highlights the fish's features, making its colors and movements stand out. Overall, the video captures the serene beauty of the fish in its aquatic environment.