The video shows a large aquarium filled with water and several fish swimming around. The fish are of different sizes and colors, with some having stripes and others being more solid in color. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish. There are also some plants and decorations in the aquarium, adding to the natural look of the habitat. The fish are seen swimming around calmly, occasionally coming up to the surface of the water.