Hydor Koralia Nano Water Circulation Pump - Hydor Circulation Pump & Aquarium Circulation PumpProvide your aquarium with continuous water movement with the Hydor Koralia Nano Water Circulation Pump. This aquarium circulation pump provides water movement that replicates the natural flow of rivers and reef currents. The compact yet versatile design makes this Hydor circulation pump an ideal accessory for mini and nano-reef setups. Continuous circulation is an essential part of keeping reef life healthy and thriving. Flowing currents help to stimulate growth in corals and other invertebrates. Also, proper water movement also helps to aerate aquarium water, supplying inhabitants with greater amounts of dissolved oxygen. The Hydor Koralia Nano Water Circulation Pump gives you the ability to create realistic currents and circulation patterns in nano-aquarium setups. The Hydor circulation pump's compact and efficient design features a new patented magnet suction cup support system, allowing for free positioning in your tank. The sphere joint has been modified for adjustable flow direction, letting you easily change the angle and flow path of the aquarium circulation pump. This Hydor circulation pump is very versatile so that it that can be adjusted to suit your unique aquatic setup. The universal design lets you use it in both marine and tropical environments. An easy-to-use interface lets you connect this aquarium circulation pump to a timer, controlling its activation with intervals of seconds, minutes or hours. Use the Hydor Koralia Nano Water Circulation Pump to recreate the movement of rivers and ocean reefs. This high performance pump consumes little energy and is quick and easy to maintain.