The video shows a large aquarium with a variety of colorful fish swimming around. The fish are of different sizes and colors, including blue, yellow, and orange. The aquarium is decorated with coral and rocks, creating a natural underwater environment. The fish are seen swimming in and out of the coral and rocks, exploring their surroundings. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish and the intricate details of the aquarium decorations.