Aquatop Aquarium Hang-On Filter - PFE-3 (Aquariums up to 25 Gallons)

With chemical, biological and mechanical filtration included, AQUATOP's hang on filter is an extremely quiet, yet robust, hang-on filter that maintains optimal oxygen levels and promotes healthy gas exchange. This innovative and flexible design will help eradicate and control free-floating debris and harmful waste in both fresh and saltwater aquariums.