The video shows a fish tank with several fish swimming around. The fish are of different sizes and colors, and they are swimming in and out of the plants and rocks in the tank. The plants are green and lush, and the rocks are of various sizes and shapes. The water is clear, and the lighting is bright, making the colors of the fish and plants stand out. The fish seem to be healthy and active, and they are swimming around the tank in a relaxed manner.