I have 4 and they are the same. The biggest one Chubs mounts anything that moves, and he seems to keep Larry,Curly and Moe in line and likes to remind them every once in awhile who the boss is. My daughters named the three after the stooges because the love movie and named the biggest one chubs, and not cause hes fat. Just because hes the big boy, and I know some may be female but we will just pretend they are all boys to keep the girls happy. But ya nothing never to serious, and I keep an eye on them for the first 10 minutes or so when feeding to make sure Chubs lets everyone else eat. The worst I seen and I know it was a mistake in identity is during feeding chubs jumped for a cricket and it moved and Moe was right buy the cricket and moved at the same time and Chubs got his arm. I freaked but he let him go in a couple of seconds. And if you got yours at petsmart I would suggest getting a fecal test done just to be safe. And I say that because I was in there one day a couple months back to get some crickets and as I walked by the FBT's enclosure there was a dead one in there flipped upside down with his foot stuck in the filter. I notified the girl in the that department and she acted like it was no big deal and when I asked her if they are supposed to clean it out she just gave me a look like ya ok. I will admit that I got mine there but I had fecal done and they were clear and I got mine before this event. But I can honestly say I would never purchase another living animal from our store. I know they are not all the same but I would do it.