I popped 2 holes in the back glass for intakes to my CL. Use an Iwaki70 and return it through 2 1" SeaSwirls. About as much as I can go w/ the way that I run things... I tried an Iwaki100 on it, and it was too much flow when the SS's swept in the front-to-back position. My tank is basically a 180, but 6" taller.
- Mac