The video shows a large aquarium filled with water and a variety of fish. The fish are swimming around in different directions, and there are small particles floating in the water. The aquarium is well-lit, and the fish come in different colors, including yellow, orange, and blue. The fish are of different sizes and shapes, and some are swimming near the bottom of the aquarium while others are near the top. The aquarium appears to be well-maintained, with clear water and healthy-looking fish.