The video shows a fish tank with a variety of fish swimming around. The tank is decorated with plants and rocks, and the fish are of different sizes and colors. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish and the greenery in the tank. The fish are seen swimming in different directions, some near the surface while others are closer to the bottom of the tank. The plants sway gently in the water, creating a calming and serene environment. Overall, the video captures the beauty and tranquility of the fish tank and the lively movements of the fish within it.