Sorry to say he died overnight. Really odd... all the red was gone, he was eating, soaking, and very active (as in fleeing from me). I'm no vet (and there are no herp vets nearby), but from what I've read on redleg, they can appear to heal but still have organ failure. Maybe I should stop bringing in unusually small/late in the season frogs... speaking of which, I brought in what seems to be a baby gray treefrog just tonight. I'm more confident about this one as my backyard was full of them.