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i have had a pregnant molly and she is in a tank with only one male molly. both her and the male molly have a lyre tail (at least i think thats what you call it). she has been in this tank for about 3 months now, and this is her first batch of fry so im certain that my male molly is the father but the baby does not have a lyre tail. is this just because they develop this in time? or is it entirely possible that the baby will just have a plain tail even though both parents have a lyre tail? i dont mind either way im just curious to know

also, out of interest, are baby swordtails born with the "sword" on their tail or does this develop with age?

thanks
 

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i'm pretty sure that the finnage develops as the fry grows into adulthood... just like its colouration takes awhile to develop too.
 
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