The video shows a close-up view of a fish tank with a variety of fish swimming around. The fish are of different sizes and colors, and they are swimming in different directions. The tank is filled with water and has a variety of rocks and pebbles on the bottom. The fish are moving around the tank, some swimming near the surface while others are closer to the bottom. The lighting in the tank is bright, and the water is clear, allowing for a good view of the fish and their surroundings.