The video shows several live crabs in a tank of water. The crabs are of various sizes and colors, and they are moving around in the tank. Some of the crabs are partially submerged in the water, while others are fully submerged. There are also some bubbles in the water, which are likely from an aeration system. The tank is made of glass and appears to be in a restaurant or seafood market. In some shots, lobsters are also visible in the tank.