The video shows a fish tank with a group of small fish swimming around. There is a bubbler in the center of the tank, which is emitting a stream of bubbles. The fish are swimming around the tank, some near the bubbler and others further away. The tank appears to be well-lit, and the water is clear. The fish are of various colors, including yellow, black, and orange. The bubbler is made of a transparent material, and the bubbles are small and numerous. The fish are of different sizes and shapes, but all appear to be healthy and active.