I had a 2" Oscar in a tank with my africans and 2 Jack dempseys. All of the other fish tageted the oscar and killed him. I tried rearranging the tank and everything. I thought that Oscars were supposed to be a tought aggressive breed.
sandtiger said:Oscar's aren't very aggresive most of the time, though some individuals are. Not as aggresive as African cichlids and Jacks, both very well known for having a bad temper. Besides, a 2" oscar is just a baby. Oscars get more aggresive once they hit sexual maturity.

