Swordtail Fry

[northrockin]

Hi

Can anyone tell me at what age will i be able to tell the sex of my swordtail fry, They are 3 weeks now.

Thank you

Michelle

 

[donna123]

hi,
my guppy fry are 7 weeks and are just starting to develop.
i had a male sword that took almost 12 weeks to show signs of him being a male.

 

[chibi]

For female, they are sexually mature when you can see their gravid spot. For males, it's when they develop a gonopodium. Not quite sure the weekage... depends on their development, really.