Oscar sick? fin going white / clear

[kpea43]

The fins weren't like this when I got him. Tanks fairly new and his top and back fin seem to be losing color


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[Jmunroe]

That's normal new growth. If your setup is new and filters not cycled properly , with not enough filtration, and only a 55 gallon (a 75 gallon at least would be better), with the Oscar ONLY in it, then you are heading for eventual problems not far down the road.