8 Out Of 8 Swordtail Fry Are Males

[Aurora]

I raised 8 swordtail fry and now they are 6 months old. All 8 are beautiful males. Is this the norm to end up with mostly or all males.

 

[kribensis12]

Males are more likely to survive with all that testosterone. I read it somewhere!

 

[dunchp]

Males are more likely to survive with all that testosterone. I read it somewhere!

Great answer!!

Read the attached.

http/fishweb.ifas.ufl.edu/Faculty%20Pubs...g_etal_2006.pdf