Changing the water quickly and easily is incredibly convenient with the Aqua In-Out set – and without the need to carry any heavy buckets back and forth. During drainage, a powerful pump transports the water out of the aquarium. The adjustable suction opening prevents aquarium inhabitants from getting caught in the pump. For filling the aquarium, the supplied 10 m hose can be fixed securely to the aquarium wall using suction cups. The Aqua In-Out Set is suitable for freshwater and saltwater aquariums.