K guys, need some help. I finally got my new max-jets and was wondering how I should place em. I got two 1200's and two 400's. I was wanting to put the 400's behind the rocks opposite of each otheraimed towards the sand so I could get better movement back there. I dunno how I should put the 1200's though. Opposite (front left/back right) or facing towards the back like returns at the front of my tank. Any recommendations?