Our software update is now concluded. You will need to reset your password to log in. In order to do this, you will have to click "Log in" in the top right corner and then "Forgot your password?".
Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
Sorry, it looks like you're out of luck. Bulbapedia says that the only places you can get a Qwilfish are Route 32 with super rod or on route 12. So there is no way to get one before the elite four.