The video shows a close-up of an aquarium with two crayfish. The crayfish are blue in color and are seen moving around on the gravel at the bottom of the tank. There is a plant in the tank, and the water is clear. The person filming the video touches one of the crayfish with their finger, and the crayfish moves its claws. The person then moves their finger away, and the crayfish continues to move its claws.