The video shows a white crab with long antennae and claws moving around inside a glass tank. The crab is seen walking on the bottom of the tank and climbing onto a rock. The tank appears to be clean and well-maintained, with no other creatures visible. The crab's movements are slow and deliberate, and it seems to be exploring its surroundings. The video is shot from above the tank, providing a clear view of the crab and its environment.