The video shows a group of sharks swimming in a tank. The sharks are of different sizes and colors, with some being gray and others being darker. They are swimming around each other and occasionally coming close to the camera. The tank is filled with water and has rocks and plants at the bottom. The sharks are moving smoothly and gracefully, with their fins and tails propelling them through the water. The lighting in the tank is bright, illuminating the sharks and their surroundings.