It's a small amount of clear foam near the corners. Seems to be only when he's handled, but not every time. This guy is like a lap dog and the "foaming" is only seen once in a while. We have lots of herp experience(but little with BTSs), and nothing else indicates an actual illness.
His diet is RepCal juvie beardie pellets, a few crickets, and some mixed vegies.
Thanks!
A