Hi,
No, that is not my problem. I think I have the wave like effect since it is similar to the one on youtube. It is basically like a rocking motion. My issue is the dial. I thought that if you turn the dial clockwise the wave increases, but in my case I turn it counterclockwise and the wave increases. My tank is 170gal and about 5-6ft long. I am trying to keep sp. Thank you, Thieu