Sorry for the loss kntrygrl. My 2 are still together, initially when I first put minnows in the tank, one of them got really territorial ,then once he had a full belly he was fine,and they dont seem to fight anymore. I have a lot of minnows in and they can catch dinner quick, I think if they hunted for along time with no minnows caught, and kept meeting another brother they would fight. They stay on opposite sides of the tank now, seems they have thier territories worked out.so far.