Do oscar's aggressive temperament get better when they mature?

[Death03]

I know you can't say any definite answer on this one but in general would oscars get gentler when they get bigger?

I'm asking this one since I have one 3" tiger oscar that bullies my 5" indo dat quite a lot in the tank. No serious damages though since there are quite a few places that the indo dat can hide, the oscar just chases the indo dat away when he gets too close. It doesn't really seem to care about the other fishes in the tank (I have a smaller 2"red O in the tank and three 4-5" bichirs) and is really comfortable swimming with them. I'm assuming it's mean towards the indo dat because of the "tiger" pattern it has?

 

[stiker]

I know you can't say any definite answer on this one but in general would oscars get gentler when they get bigger?

I'm asking this one since I have one 3" oscar that bullies my 5" indo dat quite a lot in the tank. No serious damages though since there are quite a few places that the indo dat can hide, the oscar just chases the indo dat away when he gets too close. It doesn't really seem to care about the other fishes in the tank (I have a smaller 2"red O in the tank and three 4-5" bichirs) and is really comfortable swimming with them. I'm assuming it's mean towards the indo dat because of the "tiger" pattern it has.

Aggression will most likely become worse with age and as the fish mature and becomes more territorial depending on the size of the tank. Also if your oscars turn out to be a compatible pair and they spawn their aggression will become much worse

 

[Death03]

Aggression will most likely become worse with age and as the fish mature and becomes more territorial depending on the size of the tank. Also if your oscars turn out to be a compatible pair and they spawn their aggression will become much worse

I see. They're currently in a 90g growout so I think it would be okay (for now at least) since they're still small. But then again I just have to watch them closely and if there are any serious damages then I have to transfer one of them to another tank.