I'm aiming on trying to get a circular flow around my tank with my filters as I don't plan on carpet plants but only have openings to my tank on the back corners. Will it be ok to just place 1 outflow pointing across the back of the tank and the other 1 pointing diagnally from the other corner towards the front centre on the tank? Or should I try and get the 2nd outflow to the opposite front corner and if so how do people suggest I do this?