when was the last time he crapped?
what kind of substrate is in his tank?
what are his temps?
has he been acting funny/shaky or anything lately??
did u have him the full 2 years or only get him recently?
why do u mist his enclosure?
Could he have and a respritary infection to have been leaving his mouth open?
so my ideas are either impaction or RI, i think MBD (calcium deficiency) would have been slower and he would have been weak and acting off for a while first.
sorry to hear he died, that must really suck.
