Just remember that you need to keep a close eye on them for a couple of weeks or so. They may look like fine now, but once things are settled, the Oscar could consider the BGK as a potential threat and attack it.
I haven't qt any of my fish and I never had a problem. I don't just dump them in right away. If I don't upgrade the tank. Than I will take it back to my lfs when it out grows the tank.
I have not yet met a person who hasn't eventually regretted not quarantining. Eventually you will have serious issues and you will loose a lot of fish. Its only a matter of time.
Why risk the problems?
The "It won't happen to me" scenario is a little juvenile. As is not having a plan to care for your pets throughout their life span. Better check to make sure the pet store will take a grown BGK. Very few will.
I'll have to start qt new fish then. This is the first I have heard of doing so. I'm some what new to this. Only had my tank for a year now. Thanks for the info tho. When I bought the bgk I asked about bringing it back when it out grows and they said it's not a problem.
