The video shows a close-up of a glass container filled with water. Inside the container, there are several small fish swimming around. The fish are moving around in different directions, and their movements are captured in the video. The water in the container is clear, and the fish are visible through the glass. The container appears to be placed on a surface, and the background is not visible in the video. The fish are of different sizes and colors, and they seem to be healthy and active. The video does not contain any text or subtitles.