The video shows a close-up of a fish tank with a single fish swimming around. The fish has a vibrant red body with yellow spots and a long tail. The tank is filled with clear water, and the fish is the only visible creature in the tank. The fish moves around the tank, occasionally coming close to the glass, but never touching it. The lighting in the room reflects off the water, creating a shimmering effect. The fish appears to be healthy and active, swimming smoothly and gracefully.