The video shows a large aquarium filled with various fish of different sizes and colors. The fish are swimming around in the water, and some are seen eating small fish. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish and their surroundings. The fish are of different species, including some that are brightly colored and others that are more subdued in color. The aquarium appears to be well-maintained, with clean water and no visible debris. The fish are active and seem to be healthy.