The video shows a group of fish in an aquarium. The fish are swimming around and interacting with each other. The aquarium is well-lit, and the water is clear. The fish are of different sizes and colors, but they all appear to be healthy and active. The fish are swimming in different directions, some are near the top of the aquarium while others are near the bottom. The fish are moving around in a lively manner, and their movements create a dynamic scene. The aquarium appears to be well-maintained, and the fish are thriving in their environment.