The video shows an octopus in an aquarium. The octopus is moving its tentacles and appears to be exploring its surroundings. The aquarium is lit with blue and purple lights, creating a mesmerizing effect. The octopus's skin is a deep purple color, and its tentacles are long and slender with suction cups visible on the ends. The octopus moves gracefully through the water, its tentacles undulating and curling as it navigates the tank. The aquarium appears to be well-maintained, with clear water and no visible debris.