I am trying to decide how I should place the return on my 120 gallon 5 ft tank. I want to place my external overflow off to one side instead of the center so that I have better access to it. I plan to use loc line inside the aquarium for the returns. The plan is to put a y on the return to have two pipes directing the flow. I was thinking of adding two returns but am wondering if maybe I should just add one directing the flow in one direction. Below are the options I was considering. Any advise would be appreciated.