love your Geos.
your tank is similar to mine, but I have stayed with plants on the drift wood. I have had a time finding eartheaters, was hoping for Geophaygus Tapajos as they are smaller but stumbled on a heckli(sp?) locally. now I need another, I love this fish.
I had a couple angels in my tank but the geo kept them herded in the upper corner by the filter outlet, I am thinking another geo in the tank will help keep the one I have distracted as I see yours don't bother with your angels at all.
I also have rainbows and headlight tetras in this tank.