Two of my botia Striata (Zebra Loaches) have been swirling around each other all morning. One has colored up with a brighter red and the other has darkned. I don't beleive that they are fighting because their little barbs aren't extended and there is no damage that I can see. It may be a dominance thing or a mating ritual: I don't know. I will try to post some pics and a film clip in the gallery.
I got off the porch and ran with the big dogs. Now I can't get back on the porch!