look at a 13" oscar in a 75g and you may change your mind. this not a good scenario for the fish. I got the 180 because she was just to big to swim around in a 90g.Oh, how MFK has changed over the years... Used to be full of debates over whether the minimum tank size for an oscar was a 40 breeder or a 75, and now everyone is saying a 75 is too small. Lol.
IMO, a 75 is a perfectly acceptable long term home for an oscar, even on the off chance that the oscar grows to 14"+. As long as aggression doesn't get bad, I don't see a reason why this shouldn't work out for you.
