I rotated my ATI BM today to achieve a better flow which I believe will increase the efficiency of the protein skimmer The ATI BM will draw water from the left (via Eheim pump)... output on the right (towards DSB and Bubble Counter Sponge)... so the flow will follow the direction of my filtration system.
But this will mean slightly harder to maintain the skimmer as the collection cup is further away
I believe the pros outweighs the cons