I have 2 fluval 405s on my 6' 125g tank. From the left I placed the first intake about 6" from the end and the first return 18" from the intake and the second set of hoses are located in the same arraingement with the center of the tank as the starting point. I'm curious as to how others have placed there hoses, as I'm thinking that I need to switch around the first intake and return.
