New Member

Posts: 8
From:Luxemburg,WI USA
Registered: Mar 2004

posted 03-07-2004 05:53 AM         

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Does anyone know a sure fire way to tell the sex of an oscar.

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Member

Posts: 194
From:Sterling Heights, MI, U.S.A.
Registered: Sep 2003

posted 03-07-2004 10:18 AM         

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the only way i kno is that you have to watch them breed. i dont think ther is any other way that is 100%.

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Member

Posts: 501
From:Missouri
Registered: Feb 2004

posted 03-07-2004 10:46 AM         

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There are basically 3 ways to tell the sex of oscars. One is to witness a successful spawning. Note, however, that sometimes 2 females will go through the spawning ritual, so just because you see one lay eggs, it doesn't necessarily mean the other one is a male. They actually have to produce fertilized eggs. Another way is a necropsy, but that's not recommended for obvious reasons. And you can also vent the fish (compare the size/shape of their reproductive openings). But with oscars, the difference isn't very apparent so it generally takes a bit of practice to be able to consistently come up with the correct sex.

-Chelle

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Member

Posts: 194
From:Sterling Heights, MI, U.S.A.
Registered: Sep 2003

posted 03-07-2004 10:50 AM         

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http://www.fishprofiles.com/profiles/fw/profile.asp?id=Astronotus+ocellatus there is a part that says how 2 tell a male from a female, but u msut have nboth genders or else it is useless.

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New Member

Posts: 8
From:Luxemburg,WI USA
Registered: Mar 2004

posted 03-07-2004 05:44 PM         

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thanks for the info i'll try to get a closer look. I have a red about 9" and a tiger about 7" i bought them both at the same time and the same size, when they were 1". Quite the interesting fish.

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