The Hydor Koralia Evolution or also known as Evo has taken all the things that were great with the original Koralia design and improved on it. The new Koralia Evolution propeller pumps are extrememly efficient, offering high flow while using little electricity making them well suited for a saltwater or reef aquarium. These new Koralia Evo models have been designed for use on wavemakers. These pumps have a smaller footprint than the previous generation allowing them to be less obvious in the aquarium. The Hydor Koralia's patented magnet suction-cup technology is improved too: now featuring a vibration-absorbing element to minimize movement and support smoother flow.