Tortoises are long-lived pets with highly specific environmental needs. Meeting those needs requires knowledge and commitment that many owners underestimate at the point of acquisition.
Tortoise keeping is one of the most demanding forms of companion animal husbandry in terms of specialist knowledge required relative to public perception of the animal as easy to care for. The combination of complex thermal requirements, specific UVB lighting needs, dietary precision, hibernation management, and the multi-decade time commitment makes tortoise keeping unsuitable for unprepared owners regardless of how appealing the animals are. Tortoises that are kept in inappropriate vivaria without adequate temperature gradients or UVB lighting develop metabolic bone disease — painful, progressive, and largely preventable with correct husbandry. The welfare imperative is pre-acquisition education and honest assessment of the 50-year commitment involved; many tortoises outlive their original owners and require ongoing rehoming arrangements.