I'm not sure if they can withstand our Winters. That would be a question for Wildlife & Fisheries, IMO.I should stock my pond with Peacock Bass! Wonder if they would survive in La?
They may also do damage to other species, including LMB, but I'd say that would also be a question for Wildlife & Fisheries. Just like the invasive Snakeheads that hurt native populations, the Peacocks could potentially do similar damage.
Since Louisiana doesn't have them (to the best of my knowledge) I may call Florida's Wildlife & Fisheries and ask them. Although they're an invasive species (to the best of my knowledge) Florida likely knows plenty about them since they do have Peacock Bass, I believe way down in the Panhandle. I'd also be curious how good they are to eat.