Hi, it would be helpful if you would share some more information about you and your Tegus. First off, I am unclear on your reptile experience: are you saying that you have some experience, just not with Tegus? What is the current set-up; what are you doing for housing, basking, etc. for the Tegus. You can find care sheets for Argentine Tegus at www.bluetegu.com. In general, care of Argentine and Columbian Tegus are the same. To see the difference www.agamainternational.com/merianae.shtml. On this page Bert Langerwerf mentions physical, temperamental, and diet differences between the two.