Sounds like you have a good setup going.
I'll state this, from a book I read, as I have no experience breeding/raising pairs of Oscars. If you want to breed them, you'll need more than just one pair. The book I have recommends, at least, 4. Understand once they pair off, you'll need to get rid of the others quickly, as the pair will then gang up on the stragglers. 4 is a good number since it's hard to sex Oscars. Even if they are paired off, there's no guarantee that they'll be happy with each other forever, and then you may have to seperate them in the tank, with a divider.
I did a lot of research into pairs and breeding, since I've always wanted to do it. Unfortunately, I don't have the room for all the tanks right now.
Good Luck.
