The video shows a group of fish swimming in an aquarium. The fish are of different sizes and colors, including orange, blue, and purple. They are swimming around green plants and a piece of driftwood in the tank. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish and the greenery. The fish are moving around calmly, and there is no visible aggression or rapid movement. The aquarium appears to be well-maintained, with clean water and healthy plants.