I was wondering if anyone could give me some ideas on how to calm down my oscar. I have for about two years and hes always been really easy going, but all of a sudden he become a menace. I have a green severum with him in a 90 gallon with a pleco, and he beats the crap out of the severum all the time and every time a put my hand in the tank he bites me! Already changed decor and it help for like a day. Any suggestions?

