My Russian tort "Ali" is a turd. I can put my hand in the tank and he will come running and just crawl up in my hand to come out and play. But if he is out playing and sees another one of my torts he goes crazy, dosnt matter male/ female, or even a diferent spieces, he wants to hump...and violantly at that. I have had him about 9 years now and wene i got him he was about the size of a 50 cent piece. this started a couple years ago. I have read that wene russians reach sexual maturaty they can get aggresive but i wasnt aware that they stayed that way forever... wene it first started he would mount rocks or anything that resembled a tort, but it has mellowed to only wene he is out and about, seeing the others. Has anyone had a similar experience, or knows of this. any comments are most appriciated.