How long can a bp breathe underwater? +2nd Question

[Albert Clark]

Snakes cannot breathe under water but they can certainly hold their breath under water. Mostly due to a reptilian reflex that closes off the airway initially but can allow for exhalation evidenced by bubbling seen under water sometimes. Especially if the snake is making a kill in the water. They also only have one true functioning lung that is very efficient when the snake is healthy to assist it in remaining under water for extended periods of time. Because of the only one functioning lung the capability of that lung is maximized to compensate for the vestigial lung. On a side note though op should switch to a higher humidity capable substrate to help alleviate future shedding issues. Hope this helped.