So I just measured my 6.7 month old sulcata, Dex, and he is excactly 4 inches on the plastron. I weighed him/her on an old fashioned Feedstore scale (which measures feed) and he is exactly half a pound. I believe this comes out to 230 grams. This seems small but I am not sure. I know all sulcatas vary. He eats like a champ and has a great varied diet.