Alright, thanks for the pics and info. If yours is on the bottom and can move all that air, mine should work. I'm actually having a little better stabilization in there with it on the side like that. That fan is a little crazy, it seems fast, but you can only feel the air movement with your hand a few inches away from it. I thinking it will be better to have it like I have it, or like you have your fan so it's not blowing directly on any tubs.
I totally revamped my incubator to try and fix whatever problem I had last year. New bator, new flexwatt, new fan, new tubs. I'm going substrateless, but I need to pick up some light diffuser tomorrow.