At what stage can you do the float test?

[Pollmadoll]

Youtube is one of the worst sources of information there is. There is even one idiot that has a Youtube video of his Naked Neck rooster crowing and claiming that it is half turkey. Anyone knowledgeable about chickens knows that a Naked Neck chicken is 100% chicken and is not a cross of a chicken and a turkey.

Way back before I knew any better, I was dumb enough to fall for the phony advice about the float test. I tried it once. I will never try it again. It does not work and it can be very harmful to the chick. Egg shells are porous. There does not have to be a pip for things to be able to enter the egg through its shell.

I so appreciate you telling me this before it was too late