Quote Originally Posted by leocrespo View Post
What exactly is the evidence that it is harming the animals? I've noticed no side effects whatsoever.
I don't have a lot of experience with tropical snakes save the single royal python I have and for the two snake species (including the royal) I've kept and in both tortoises species that I have kept humidity and water supply has proven to be critical to health.

I have never seen issues with reptiles that have proper humidity and temperatures, my male royal after me fiddling with humidity and temps has gone from 230grams to 1.1kg in a year. Even temperate species will grow and thrive in appropriate temps, I got my three Mediterranean spur thighed tortoises to gain 10% of their end of summer body weight in 3 months despite the fact that they would have been hibernating during that time period if I had of let them.

Correct temperatures and humidity is critical to maintain good health of a reptile and it also ensures they reach their full growth potential. I have seen this in multiple species of reptile.