Koralia Nano 425 - 425 gph - 3.5W

The most efficient circulation pumps available for small and nano tanks. Hydor Koralia Nano circulation pumps feature a unique magnet suction mount making them easy to adjustment and move about your tank. Their small profile design blends seamlessly into your aquarium's decor, while a recently-redesigned impeller system provides the high performance, low wattage output you've come to expect from Hydor Koralia circulation pumps.