In this video, we see a group of small fish swimming around in an aquarium. The fish are black and white in color and have long tails. They are swimming near the surface of the water, which is clear and has small bubbles floating around. The aquarium is decorated with green plants and rocks, creating a natural habitat for the fish. The fish move gracefully through the water, occasionally darting in different directions. The overall atmosphere of the video is peaceful and calming, with the gentle movement of the fish and the soft lighting reflecting off the water's surface.