The video shows a blue crayfish in an aquarium. The crayfish is seen climbing up a piece of driftwood that is covered in green moss. The driftwood is brown and has a rough texture. The crayfish has a hard exoskeleton and long antennae. The aquarium appears to be well-maintained, with clear water and a black gravel substrate. The crayfish moves slowly and deliberately, using its legs to grip the wood.