Review on Enhance Your Aquarium's Water Flow with YCTECH Aquarium Fish Tank Circulation Pump Wave Maker Power Head (6W 8W) by Jackie Wright

So, for starters, when I plugged it in it was damn loud. The blades hit the walls of the pump. Then, after a bit of fiddling, I made sure the noise stopped, but the two pumps didn't pump. They sucked, after messing with them a few times I was finally able to get the blades to spin in the right direction. It looks like they're running both ways, which they shouldn't be. Worst aquarium product I have ever received!