I just got two marginated torts, one is 4.5 inches and the other is 4.75. They'er supposed to be females and are staying in a kiddie pool with plenty of room to get away from each other if they choose. Every time i look in they seem to be hanging out in the same area, either under the heat light or in the hide, so i'm assuming things will be alright. In the spring they will get to go outside in an 8x8 run. They were sold as captive bred from underground reptile and one has extra scutes on it's marginal scutes, is that a good sign that it was higher temps for female? I've been reading up on them and it seem that you can't really tell sex until 8 inches? I thought it was around 6. The reason i got two was i seem that i have bad luck with ordering girl then having them end up being boys. (too many boys bad and i like having creeps lol) I will get some pics up this weekend love to get the input.