I have a 50g AIO. My return pump is currently set up to run around 440gph. I also have 2 Nero 3 pumps I have running on a random pattern ranging between 25%-60%. You can see in the pic how I have the Neros set up. I was hoping to avoid having dead spots by putting one of them behind the scape and leaving the other one in front of the scape. I am curious if this is a common way to set this up or if I should set both Neros up front and count on circulatory flow from the return to avoid the dead spots. TIA for any thoughts/suggestions.