It would depend on how strong the flow really is, but in general i personally would avoid a spot that just blows the polyps over instead of having them sway
Yes it can. Too strong or constant of flow from one direction can start causing the tissue to recede on that side and can eventually lead to a head death/PBO.
I’ve countered the one directional flow by angling my random flow generator more diagonally across the surface.
I had the return pump facing straight and the wave maker on the opposite side pointing back. It was all one big clockwise movement.
This seems to have sorted it.