I never personally had an issue with my grow tent when I used it for my plants, and I abused it for a good couple of years. I don't know the method they use to bond the mylar, or if there are some that hold up better than others. I haven't seen many complaints from general reviews of the tents on amazon and I would definitely think that tegu owners would be the first people to become aware of this issue. I think if it's well taken care of it will last just fine, especially if protected from the animal by lining it in some way on the inside.