The AquaClear Pumps are a full range of technically advanced air pumps that provide reliable power for all aquarium air requirements. These "virtually silent" running air pumps will provide many years of trouble-free operation. The AquaClear Vibrator Air Pumps are a reliable source of air for air-operated items such as air stones, air-actuated ornaments, air driven protein skimmers or for adding movement or oxygen to any aquarium. For use with 10-30 gallon aquariums.