He was being paired once a week but the past month I started giving him 12 days off, so it's been almost two weeks. He was locked with her for over 24 hours before his episode. This morning he was not crazy but did hiss for the first time He spilled his water so it had to be cleaned. But he went right back and relaxed after the cleaning. He has been paired with the female before. Could it be that he smelled the male/female pair in the tub below him?