The video shows a group of fish swimming in a pool. The fish are of different sizes and colors, and they are swimming around the pool in various directions. The water in the pool is clear, and the fish are visible through the water. The pool has a blue tiled border, and there are some plants visible in the water. The fish are swimming calmly, and there is no visible aggression or competition between them. The video does not show any human interaction with the fish.