Oscars aggression??

[Dovii dude]

I have 2 O's,1 is about8-9 inches(Albino Tiger) the other is 2-3 inches(Reg Tiger).They are in seperate tanks but i have noticed that the smaller O is much more aggressive than the larger 1.He has killed several other fish that i have tried to keep with it,while the adult O doesnt bother with anything that i put in with him(unless it will fit in its mouth)my question is do O'schill out in time,as they get older and bigger??Thanks!!

 

[js302]

I noticed the same thing. My 8 inch tiger is less aggressive than my 4.5 inch red.

Gotta wait and see if the little guy mellows...

 

[roliva]

It depends on the fish. I had an albino tiger once who was calm as can be (13") but my buddy who also had an albino tiger at the time, about the same size, would not let anything live with him. Each was in a 75 gal tank.
In general, most mellow out.

 

[rallysman]

It also depends on the size of the tank. I dont think oscars are agressive, just territorial.

 

[mostlycichlids]

If the tank is too small then the oscar will act very agressive because it feels crowded. What is the size of the tank?

 

[Micky_Fahaka]

I have a 10" Albino Tiger, I keep him with 3 Huge Silver Dollars, 2 scared lookin Angels and a
sailfin Plec.....He's really calm until feeding time!

 

[Dovii dude]

It is a 100 gal tank.

 

[mostlycichlids]

to answer your question some are more agressive than others some may be ok with say half a tank of territory and some want to have the whole tank. It may tolerate a tank mate at some point but it sounds like you just got an agressive little bastard.

 

[mssassysan2000]

It also depends on the size of the tank. I dont think oscars are agressive, just territorial.

 

[Tongue33]

I have 2 O's,1 is about8-9 inches(Albino Tiger) the other is 2-3 inches(Reg Tiger).They are in seperate tanks but i have noticed that the smaller O is much more aggressive than the larger 1.He has killed several other fish that i have tried to keep with it,while the adult O doesnt bother with anything that i put in with him(unless it will fit in its mouth)my question is do O'schill out in time,as they get older and bigger??Thanks!!

What are the mates that "O" killed ?