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Results 1 to 6 of 6
  1. #1

    Default Gender Thoughts... Molly Q&A for me.

    0 Not allowed!
    I HAD 20 Gold Doubloon Molly fry but i gave all them away except these four. Now, I don't know if anybody can really notice but 2 have golden color heads like their mother and the other two have greyish/black faces. Could that determine the sex because I heard makes usually have more vibrant colors or could it just possibly mean it's genetic, the greyish/black heads come from their father (who I don't own)? Like humans, they have features of each parent so can fish, right? I think so. But which is right?
    Attached Images Attached Images

  2. Default

    0 Not allowed!
    Are they too young to tell the difference by looking for the males reproductive organ?

  3. #3


    0 Not allowed!
    I think so. I don't know exactly when you are able to tell the difference but I am guessing they are too young. They are almost 3 weeks old.

  4. #4


    0 Not allowed!
    I don't think their current color differences have much to do with sex. Livebearers are one of the relatively few fish species that practice internal ftilization. The best way to sex livebearers is to look at the anal fin. Females have a normal looking fin while males have a rodlike intromittent organ. For now, the fish are likely too young though, as the anal fin of all young fish look same.

  5. #5


    0 Not allowed!
    The coloring should not matter for males or females. True that females generally are less colorful, but with live bearers this is not always the case. Especially with Mollys. The young will pick up color traits from both the mother and the father and genetics could make it go either way. So yeah with these guys, anatomical differences is the only way to truly know.
    Increasing your biodiversity increases your stability.

    You know what this tank needs? ........................ Crypts.

  6. Default Gender Thoughts... Molly Q&A for me.

    1 Not allowed!
    I'm just looking around researching for my own use. Just read this & thought I'd share what I found before I came here. It's posted in the stickies for Livebearers.

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