determining sex in mollys - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 11-04-2010, 05:38 PM Thread Starter
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determining sex in mollys

i have a pair of mollys and when i bought them the guy at the store asked if i wanted a male and female so i said yes. i see a differance in the fins below the belly on them but thats about all. can yall determine the sex of these two? thanks!
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post #2 of 4 Old 11-04-2010, 05:39 PM Thread Starter
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sorry the pics are so huge haha!
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post #3 of 4 Old 11-05-2010, 04:06 PM
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The males have gonopodiums. Which is the elongated fin under the male.It is when the fu=in joins together so he can inseminate the female. Get another female so its 2 2 1.

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post #4 of 4 Old 11-06-2010, 09:41 AM Thread Starter
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ok thanks. i thought that fin would determine the sex.
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