He started this today, is it something I should be concerned about or is it nothing? He’s been doing this non-stop for about an hour, even after I removed him from his enclosure. I tried to close his mouth with my finger, but it just dropped back down into this position.
Sometimes they develop habits of keeping their mouth slightly open. Be sure the temperatures are
good & he isn't getting too hot.
Calcium issues have been ruled out, correct?