"P. polleni" displays the same kind of 'intelligent' behavior common to other cichlids. They can be trained to eat from the hand and can recognize and approach its owner (often retreating from an unfamiliar person). In the aquarium, "P. polleni" is more cautious and easily spooked than many of the more readily available cichlids, but otherwise is adaptable to aquarium life. "P. polleni" is aggressive towards conspecifics, especially if a male / female bond develops. The pair bonds between males and females are sporadic and easily broken. If this happens, the female can become imperiled by the male's aggression if not removed.