So Oscars are supposed to be these really aggressive fish? Mine gets bullied by the othercichlids in our 100 gal. He has quite a few nips in his fins, but he's very healthy. He's about 6-7 inches. But he never chases the other fish or anything. Is he just an exception to the rule? And he's a huge eater, I feed him pellets usually and he fits 7 or 8 in his mouth at once. He has not problem getting food. He's just a "nice guy". Weird?