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There is no discernible difference between male and female Oscars. Unless you can actually watch them breeding and see who lays the ova and who fertilises them, they can only be sexed when adult and by a process called 'venting". There are people who say that there is a difference in their fins. This is like saying that the sexual difference between men and women is the length of their hair. This method does not work with Oscars but it does with some other species of fish..

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15y ago

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