I recently got a Golden Dorado that is about 5 inches. His tank mates are 5 datnoids, ornate bichir, and a flagtail Prochilodus. The dorado seems to leave the datnoids and bichirs alone, but sometimes gives the flagtail the death stare like he is about to take a nip. I understand Jardini's can be mean, but would one put the dorado in check? I have the room for both if they need to be seperated.