Review on Enhance Water Flow and Circulation with Hydor Koralia Evolution Aquarium Circulation Pump by Alexis Sanchez

Very good pumps. It distributes the water very well over the coral and keeps the dirt on the sand moving. The fish like to go with the flow. Better than the 6 Jaebos I've had in less than 2 years, this is junk. I started with them and they lasted 5-6 years and I was just thinking about trying something different, well I was like, 'If it ain't broke, don't fix it.' But for some reason the caught Pump to rotate in the opposite direction, I had never had such a problem before. My husband noticed this and we turned it off, restarted it and it worked, so four stars for that reason, hoping it was just a minor glitch. I will continue to follow the flow with all of you. It moves water pretty well. I bought three more of these, there was one left so two on the sides and two on the back so there was movement everywhere. I also bought a wave controller but now I'm not sure I will use it, I don't want the pumps to turn back on and run backwards so I can send it back. I have a wave generator and it should be enough to disturb the flow here and there and shake things up. They are nice and big, sure a good sized pump.