The video shows a colorful underwater scene with various fish swimming around a coral reef. The fish are of different sizes and colors, including yellow, blue, and black. The coral reef is a mix of purple, pink, and green hues, with some corals having a soft, spongy texture, while others are hard and rigid. The fish are seen swimming in and out of the coral, sometimes hiding behind it, and other times swimming in the open water. The water is clear, allowing for a good view of the fish and coral.