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[JasonL]

from that post, I noticed you said "misted his enclosure" and mentioned he left his mouth open longer? How often do you mist ? and what is the humidity level in the enclosure? humid enclosures will cause a respiratory infection which will cause them to "gape" he should only have his mouth open whilst basking during hot weather, though saying that, symptoms of RI usually go for some time before death, and the most common cause for quick deaths from dragons is calcium related.