Hi MFK community. I was wondering how aggressive I could expect a Jardini Arowana to be? Are we talking about Dovii levels of aggression or more along the lines of a feisty Jack Dempsey? I ask because I am considering getting one, but I have heard they're on the aggressive side. It's going into a 500 gallon tank with 4 ~10 inch Oscar's so I don't think space is going to be problem.