Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (
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Falina 04-09-2007 08:09 AM

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?


soco1125 04-09-2007 09:03 AM

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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