Happy to help. I lost my female around 25 inches. She took an 8 inch white perch and in doing so, the dorsal fin pierced the hard palate and killed her within hours. The male reached 47 inches. Crazy aggressive. I worried about my kids and their friends. It would attack anything near it. Predictably unpredictable. It snapped maybe 5 aquatongs during feedings. As a trick I would put a 2 inch PVC pipe near it and it would bite and I could pull it almost out of the pool.
It could only be housed by itself and I couldn't obtain a similar sized female to pair it. Anything under 30 inches probably would have been killed. In the end, somehow my heater cage broke loose and it laid on the heater and suffered a mortal wound. I can not recommend this species. The wards on the other hand are probably the best of the genus. Not the most attractive, but size and temperament make them the best for the home aquarium.