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Discussion Starter · #1 ·
I thought I had three male green gardneri kilifish but when looking in my tank today I think two were making sweet music. I did video this episode but am unable to upload it for verification.

How can you tell the difference between the male and female?
 

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Females don't have nearly the intensity or coverage of color. There are no lyers on the tail in most cases or they are very undeveloped. When they are kept under optimal condition, the females color up significantly, but the males should increase in intensity as well.
 
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