To be or not to be female?

May 18, 2005
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Pacific Northwest
#1
After going to my LFS over the weekend and purchasing 2 swordtails, which what i thought were ONE male and ONE female... Im thinking I got 2 males... I know that the male has a very pronounced sword shape in their tail, and the females have none at all??? With the 2 I purchased, one is obviously a male but the other one I am unsure of, because it has a very slight sword shape in the tail. How can I be sure if what I got is a female? :cool: