The video shows a group of goldfish swimming in an aquarium. The aquarium has a blue background and is filled with small, multicolored gravel. There is a brown rock structure in the center of the tank. The goldfish are of various sizes and colors, including orange, white, and a mix of both. They are seen swimming around the tank, some near the surface and others closer to the bottom. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish and the gravel.