The video shows a crab in an aquarium. The crab is standing on a rock and has its claws open. The aquarium is filled with blue water and there are other fish swimming around in the background. The crab's shell is brown and spotted, and its claws are a lighter color. The rock on which the crab is standing is gray and has a rough texture. The fish in the background are small and appear to be swimming calmly. The aquarium is well-lit, and the blue water gives a serene feeling to the scene.