Pejelajarto;4773667; said:sell the other fish and keep the gar is better advice...
I agree with this advice, but it's all up to you in the end.
Many MFKers have kept gars with arowana and/or peacock bass with mixed results. Most of us recommend against the combination, but a few of us have had some success. Those of us who say "Give it a try." recommend watching for even the smallest signs of aggression to avoid any life-threatening injuries to any of the fish, but many of us say "Don't try it!" in order to be sure to avoid any injuries to any of the fish.
The personalities of the individual fish definitely play a major part in the decision to house them all together, so I recommend against this combination if there are currently any signs of aggression between the fish that you intend to house the gar with.
We could discuss the ideal tankmates for gars for quite some time, so I'll leave it at this: It's all up to you in the end. You're bound to catch some grief from either side no matter what you do, so be sure to make sure that you're on top of things when you make your choice.
