Everyone has there own opinions. But realistically a 75 or even a 90 is grossly small for an adult oscar.
I have a friend with 2 12" oscars in a 140 and they looked crammed.
I dont see why people get *****ed at for housing a 2ft fish in a 6x2x2. But those same people say a 75-90 is ok for a 12"+ fish. Other then biological factors. Its the same damn thing.
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Yet a lot of those same people will look at a tank, lets say 300 gallons, filled with fish to the point where they rub fins in passing and praise the skills of the keeper. They will go on about their experience in accomplishing this feat. How is this different?
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