Review on 🐠 Hygger Submersible Aquarium Powerhead 2000GPH Fish Tank Wavemaker Circulation Pump for Freshwater and Saltwater - 360 Degree Rotatable Head Pump, 16W by Amy Howard

Good design. The impeller magnet has a large surface area. This is a good size block. So make sure you have space for it. I've got mine on top for now until I figure out how things work with outputs. Sand, coral fish, etc. I had a tidy problem with the device. It has a fuse on the wheel that prevents it from working if the wheel is too far forward. It's okay if you just let it run all the time. But I have mine on the shaft generator. So as a result. I can't filter it forward. Fortunately, they have an attachment that allows me to lead them downstairs. Just not to the extent that I would like. 1.5 months update. This is a serious joke. In a month and a half. Both devices that I bought do not work properly. One impeller randomly rotates in the opposite direction while the other device does not rotate. It just makes a lot of noise from the safety bar on the impeller. The one who moves backwards has no teeth at all. Just look at another block. Save yourself the frustration. On September 9, 2018, I removed both devices and threw them in the trash. Both units worked backwards all the time.