Mario, does it have more then one mouth? If it does, try fragging it? Take it out of the tank, and wrap a rubberband in between the mouths. Then put it back in the tank for 2-3 weeks. As it expands, the rubber band will start to tear the flesh. Then, use a wet saw and carefully cut where the tear is to complete the seperation.. Then give it a couple of weeks for the flesh to heal up and you have two OBC. And they sell for quite the pretty penny :)