
Most Argentine tegus in the US are CBB (captive bred and born), but many Colombian tegus are still WC (wild-caught). CBB tegus are easier to tame and more likely to be healthy. WC tegus are difficult to tame and more likely to be loaded with parasites and other forms of disease.
If you are buying a tegu in-person, you are most likely at a pet store or reptile expo. You have the luxury of examining the animal up-close and personal, so use this opportunity to give it a thorough check-over:
If you’re at a pet store, look at the enclosure:
If you’re buying from a small independent pet shop, ask where they sourced their tegu and if they can give you the name of the breeder. If they don’t know, ask if you can get that information from the manager. If they are still unwilling to disclose that information, it’s a good idea to walk away.
Whenever possible, buy from a breeder who specializes in tegus, not a big-box reptile distributor (Underground Reptiles, Backwater Reptiles, BHB Reptiles, etc.). The narrower the focus, the more likely you will receive a healthy animal. Personally I recommend buying tegus exclusively from breeders, as you’re more likely to know what you’re getting. Of course, buying from a breeder often necessitates buying online, which means extra fees for overnight shipping.
If you have multiple good options, go with your gut and pick the one you personally like best.
If this is your first tegu, buy a hatchling. Hatchlings are smaller and easier to handle, and if you make a mistake, a bite from a hatchling is no big deal. Hatchlings are also easier to tame down, often growing into “puppy-dog tame” adults. Adopting an adult tegu, particularly an untamed tegu, is best left to experts with plenty of prior tegu experience.