The video shows a close-up of a fish swimming in a tank. The fish has a long, slender body with a pinkish hue and a pointed snout. It has a long, flowing tail with red and white stripes. The fish is swimming near the bottom of the tank, which is covered in brown leaves. The water is clear, and there are small bubbles visible around the fish. The fish moves gracefully through the water, its fins and tail undulating gently.