Sexing

[Hardridge]

Does anyone know how to sex B Cardinals

 

[Beengirl]

From what I've read on the Internet, there's no sure fire way to do that. Some people say to go by the mouth size cuz males apparently have bigger mouth, but that isn't actually reliable either.

 

[Hardridge]

I just got a smaller one. I read that poss the ones with larger fin
Are males