The video shows a large stingray swimming in a tank. The stingray has a flat body with a long tail and two fins on its back. It is gray in color with white spots on its back and a white underbelly. The stingray is swimming slowly and gracefully, with its fins undulating gently. The tank is filled with clear blue water, and there are other fish swimming in the background. The stingray moves its fins in a rhythmic pattern, creating a mesmerizing effect.