Advertisement They were siblings that had been together for two and a half years. I kept them together originally since I thought they were both small boys and had room for another tank, but one turned out to be a subadult female and molted into a monster a few months later. But they had been okay together during andafter that, and while the thought crossed my mind occationally that she could turn homicidal - she was always crazy aggressive with me, but never with her sibling - I really didn't expect to find her eating him tonight. I had just changed the sub in the cage as part of the roach cleanup of that room, and I guess it was enough for her to get territorial. (I had been feeding dubia but my allergies to them got extreme.) I always knew she was a little off somehow, she's chocolate instead of black like the rest of her siblings, and like twice the size of all of her sisters and probably three times her brother's mass. I was intrigued by her because she was so different, but I guess I should have been cautious of her instead. I'm kicking myself right now. He was calm and out a lot, and I always liked him the best. Had to for posterity, because I hope to never see it again. Let it serve as a warning to never get to comfortable with communal species, because you might end up with a crazy individual. I should have been more cautious about putting them in the tank together, although my gut says no matter how I would have done it this would have been the outcome.