Hydor Koralia EvolutionThe Koralia Evolution 550 fills a gap that we were getting requests for. The Nano 425 is great, but the next pump up was our 750-gph. We had many people looking for something in the middle. You could call the 550 a Nano on steroids, or a bulked up Nano. The Koralia Evolution 550 has a full size magnet, and the 550-gph is great for all medium size reef tanks.
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|Hydor Hydor Koralia Circulation and Wave Pump: Koralia 600 - (600 GPH - 4.5 Watts)||new||in stock||$38.48|