I have a 125 gal and right now I have a 3 inch jardini aro, and a Oscar who is about half his size. I am ready to move the Oscar to a 55 gallon, but Id rather not. Who thinks this relationship will last? Will my Oscar grow faster than my aro? So far my Oscar just eats faster and I have to distract him to get the aro food.... I think it will be a neat aquarium if the two end up getting along.