The video shows a large fish tank with several fish swimming around. The fish are of different sizes and colors, including orange, black and white, and blue. The tank is decorated with rocks, plants, and a wooden structure. The water is clear and the lighting is bright, highlighting the vibrant colors of the fish. The fish are seen swimming in different directions, some near the surface while others are near the bottom of the tank. The tank appears to be well-maintained and the fish seem healthy and active.