Alright i have heard from many people that oscars are big and mean and will eat anything you put in with them, i'm trying to prove them wrong, that and i really like oscars. What can put in with an oscar in a 75 gallon or bigger(make a suggestion). I've never kept an oscar or anything that big before but i have done great with every other kind of fish includeing a stingray, so i think i can handle them.