Just recaptured the little Mexican Black King. Other than a slight musking, no problems- not even an attempt to bite. I've shimmed the tub to about 1/16th of a gap and hope that will solve the roaming snake problem. He doesn't look any fatter, so I'm hoping he didn't find the little African House snake that's missing too, during his travels around the snake room.

So never give up, you may find them sometimes!
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Lora