The video shows a person holding a bottle of Windex and spraying it into an aquarium. The aquarium is filled with colorful fish and coral. The person sprays the Windex onto the glass of the aquarium, and the fish swim around the tank. The Windex bottle is clear with a blue label and a spray nozzle. The aquarium is well-lit, and the water is clear. The fish are of different sizes and colors, and the coral is pink and green.