The video shows a fish tank with a variety of fish swimming around. The fish are of different sizes and colors, including blue and yellow. The tank is decorated with green plants and has a gravel bottom. The fish are seen swimming around the tank, sometimes hiding behind the plants and other times swimming in the open water. The lighting in the tank is bright, highlighting the colors of the fish and the plants. The water is clear, allowing for a good view of the fish and their surroundings.