I am fairly confused, after many years of fish keeping I decided to buy and raise an Oscar. I got him at 2 inches, he is now 2 years old and is 9-10 inches, very healthy, very interactive and a joy to watch and play around with. My issue is that I thought Oscar fish were aggressive? My Oscar is nothing but aggressive, it is 100% friendly, it is housed with 2 Pictus catfish, and some other American Cichlids, my Convicts bred and had several babies in the same tank with the Oscar! He did not eat them, the babies are all now 1/2-1 inch long, I removed the parents so they could breed in a seperate tank, but my Oscar lives right along with offspring, they eat together and share the tank like best buddies. Is it normal for an Oscar not to be aggressive? He never displays any, he's like a big friendly teddy bear. Any one else have friendly non aggressive Oscars?!