The video shows a large aquarium filled with colorful fish of different species. The fish are swimming around in the water, and some are seen near the surface while others are near the bottom. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish. The fish are of various sizes and colors, including yellow, orange, blue, and white. Some fish have stripes or spots on their bodies, while others are solid in color. The aquarium appears to be well-maintained, with no visible algae or debris. The fish are swimming calmly, and there is no aggressive behavior observed.