The video shows a small fish swimming in a tank. The fish is moving around the tank, and the camera follows its movements. The water in the tank is clear, and the fish is the only visible creature in the tank. The fish is small and has a slender body with a pointed nose. It is swimming near the bottom of the tank, close to the sandy bottom. The tank appears to be well-maintained, with no visible debris or algae. The lighting in the tank is bright, and the water is clean and clear. The fish is the only visible creature in the tank, and it seems to be healthy and active.