The video shows a fish tank with various fish swimming around. The fish are of different sizes and colors, including red, black, and white. The tank is decorated with green plants and rocks, creating a natural habitat for the fish. The water is clear, allowing for a good view of the fish and their surroundings. The fish are seen swimming in different directions, some hiding behind the plants while others swim in the open water. The tank appears to be well-maintained, with no visible algae or debris. Overall, the video provides a peaceful and calming view of the fish tank and its inhabitants.