The video shows a group of small fish swimming in a tank. The fish are moving around in different directions, creating a lively scene. The water is clear, allowing for a good view of the fish and their movements. The fish are of various sizes and colors, but all appear to be healthy and active. The tank seems to be well-maintained, with no visible debris or algae. Overall, the video captures the beauty and diversity of these small aquatic creatures in their habitat.