The video shows a large aquarium tank filled with various types of fish and other sea creatures. The tank is illuminated with blue light, creating a serene underwater scene. A group of children, including a young boy and a girl, are standing in front of the tank, observing the marine life. The children are pointing and looking at the fish as they swim by. The fish are of different sizes and colors, with some being yellow, others blue, and a few striped. The tank also contains some coral and rocks, adding to the natural habitat of the fish. The children seem to be fascinated by the fish and their movements.