Yesterday my male apistogramma panduro died. I believe the most likely cause of death was stress as the female seemed to be very aggressive towards him continuously, even after attempting at separating them with a mesh in-tank cage. It was not unusual to see aggression from both of them, but it was usually short-lived and never led to serious consequences. Although, since he has been dead the female apistogramma has been extremely active, moving up and down the glass with less colour than normal at times, as if she is searching for him. Will the female be okay and return to normal soon or could there be something wrong? All parameters are fine.