So i finally got a setup for the little guy- moved him from the glass pickle jar to a more spacious small KK with a hide. Luckily, i went to check to see how he was adjusting after 10 minutes or so, because he had escaped and was BEHIND the KK instead of IN it. Seems that he's able to squeeze his body through smaller spaces than i had anticipated! I think i'll line the inside of the lid with screen material and see how well that works.