I recently purchased Rambo from a pet store and they were unable to say forsure how old he/she may be. According to length and what I read on the web, I can estimate 4months. I don't know what is the correct amount of insects to be feeding daily. He loves his crickets and meal worms. But I read so many mixed reviews about the worms and about all the amounts. I don't want to make my little guy sick or anything!! Oh, and he does eat his greens daily..