The video shows a close-up of a fish tank with various types of fish swimming around. The fish are of different colors and sizes, and they are swimming in and out of the coral and rocks. The tank is well-lit, and the water is clear, allowing for a good view of the fish and their surroundings. The fish are moving around calmly, and there is no visible aggression or stress among them. The coral and rocks in the tank provide a natural habitat for the fish, and the tank appears to be well-maintained. Overall, the video provides a peaceful and relaxing view of the fish in their environment.