I'd ask what size enclosure that snake had been living in. Older snakes (much like older people & dogs etc) are more set in their ways, and in any event, I do not recommend tubs or enclosures without a LOT of ventilation for a desert snake such as a Trans Pecos. Always preferable if you can come close to the size of the snake's previous home. Mature TPs do well in 40 gal. "breeder" tanks. Nice that you found this guy & will be giving him a new home- people's lives can change a lot in 9 years, & he should have plenty more with you now. I look forward to "meeting" him here.![]()