I am in the process of setting up a jbj 28g led pro. After reading the different skimmer options I picked up a HOB-1. It will be in my bedroom and I wanted powerful yet quiet and did have room for a HOB. However my lid won't open for nothing with it on. I did cut the intake a little as in the previous posts but the output line is still blocking it even with just the elbow on without the T. Before I start cutting stuff has anyone done it before? Does it impede performance?