The video shows a close-up of a fish swimming in an aquarium. The fish has a vibrant blue and yellow coloration with intricate patterns on its body. It has large, expressive eyes and a small mouth. The fish is swimming near the bottom of the tank, which is covered in small white pebbles. The background is blurred, but it appears to be a dark blue color, likely the water in the tank. The fish moves gracefully and appears to be healthy and well-cared for.