well the salt solution shouuld be highly diluted...as bad as it looks at together it atleast looks slightly better after being cleaned up...gosh I still and cringing.. I can only imagine how that snake has to feel!!
What are you using to heat the tank? Might of said that already an I missed it..if so sorry!
Is he ever allowed out of his cage to stroll around? This could be a chemical burn perhaps..bleach on the floors etc. etc....hmmm... rack your brain lol I have no idea but cant wait to know what comes about this...