01-21-2010, 11:30 AM
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Are the odds against me, or am I not giving it long enough? (Livebearers)
My platys (one mother died, RIP :( ) and a female swordtail gave birth back in early October, around the 8th I think. They've been steadily producing fry since then.
My question is when can I gender them? The reason I ask is because, by the looks of it, all 15 fry or so are female. About 5 fry are bigger than the parents already, yet all are "female". No fry show signs of a gonopodium, which surprises me after this amount of time. How long can it take for a platy/sword to grow the gonopodium?
Side note: I hybridized a blue tuxedo platy with a red high fin swordtail and the result is great! Swordtail body with black tuxedo, red body and aqua/blue shimmer all over. Beautiful. I want to try to continue breeding swordtails with the blue colouring. Any tips?