male or female - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 06-26-2007, 12:55 PM Thread Starter
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male or female

how do you tell if a cori is a male or female
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post #2 of 4 Old 06-26-2007, 12:56 PM
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As they mature, females get plumper.
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post #3 of 4 Old 06-26-2007, 12:57 PM Thread Starter
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ok thanks
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post #4 of 4 Old 06-26-2007, 02:43 PM
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Thats the only tried method to identify male and female. There is a lot more out there, like the females belly will rest on the substrate where a males won't if they pectorial fins are down. Males have a tendency to have a higher more pointed drosal fin that females. The females pectoral fins are cupped so they can hold the egg where the males is is almost a reverse cup.

That all being said, it comes down to realy getting to know them. I know it sounds like one of those "expert" things but I can tell just belooking at them now without going into all the body details and I don;t make a point to study them. All it took was one breeding session and I can now fairly accurately tell the sex of any of the species I have kept even before mature.
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