I put them back together with intense divider and a convict. Her Am was between .25 and .50 ppm...she was being poisoned. The filter was cycled, I don't know...they had separation anxiety and looked depressed. She was just swimming in circles. They don't deserve this. I know they are better with me, but at the same time, I want to enjoy my monsters. So, until I can get her tank stable, I will risk the skin on my arm to keep them apart