The video shows a small fish swimming around in a tank. The fish is yellow and green in color and appears to be exploring its surroundings. The tank is filled with water and has a piece of wood in it, which the fish swims around. There are also some plants visible in the background. The fish seems to be alone in the tank and is the only visible creature. The water is clear, and the lighting in the tank is bright, making it easy to see the fish and its surroundings. The fish moves smoothly through the water, occasionally darting towards the camera before swimming away. Overall, the video captures a peaceful moment in the life of a small fish in its tank.