Does it matter which direction the skimmer pump is facing in the sump? I have a 150SSS in a Fiji cube 20 and it takes up ALL the room lol. I would prefer to have the pump facing in a way that allows me to use the acryllic cover that comes with the sump (standpipe in the back) and also makes it easier to take the cup off. But Im not sure if it is counter productive to not have the pump facing the direction of where the water actually enters the chamber. Thoughts?