I am running a xf230 in my 29 gal nano and I was wondering if anyone else is using it? I been playing around with different setting and whatnot, with tons of flow but haven't found one I'm really please with. I would like to run it in the OGC mode that come from the factory but I can't tell if it's pulling any flow in reverse. Does anyone know the paddle setup I need to be using? Right now it is still set up like it was when I bought it. I have taken it out and cleaned it bi-weekly and put it back together. Do I need to run two A paddles? Two Bs? A and B? Any help will be appreciated guys