08-07-2012, 08:54 AM
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Oh wow what a horror story. You must get those oscars out, unless planning on a 120gallon 6 foot upgrade to your tank within 6 months... They are not beginner fish. Beautiful, yes, but far too demanding for a first timer IMO. They grow so huge, and you will be totally limited to what you can out in your tank with them, basically large aggressive cichlids and other large fish, not good. You can dose with prime in an emergency to lower nitrite/nitrate levels, but only lasts for 24/36hours. You really want this stuff to be happening so as to cycle your tank, so inhibiting it is probably a bad thing, so removing your fish is the best option, like others have said, let the tank cycle, read up on the Internet about this, then restock slowly with compatible fish. Forget those poor oscars, return them ASAP!
Sorry this has happened but it's up to us who keep fish to research before getting into the hobby. Good luck and all the best