Sorry, my mistake, I didn't realize that your old zonata was a WC snake and that it was already adult when captured. My friends parvirubra is his own CB.

I lost one pretty old male agalma last spring. He was imported from the U.S. back in 1987 as a yearling. He died from some strange intestinal disease making him loose weight rapidly though eating good the whole way thru. Vet's couldn't stop it. They suspected anaerobic bacteria (flagellates), but the medicine had no effect on him.

He went into shed and took to his hide, I didn't realize that he was dead until I felt the bad smell from his enclosure and by then the body was too decomposed to allow a postmortem.