the free range but not fertile must mean he doesnt have a rooster so for SURE no chicks hatching there HAS to be a rooster around to get an y fertile eggs although hens will lay anyway without a roo around.
.Ive never hatched Trader Joes myself but I think from what ive read here you could get one or 2 even but its sort of a fluke
Buying "for sure" fertile eggs make for a much better chance of hatch so 6 looking good ? that's fine
If its your first hatch the FERTILE bunch I would not throw out any that were iffy. Totally clear or a glow of light through every part of the egg...then its probably not fertile.
If you turn it in your hand maybe see dark area but at day 9 it should be a pretty big dark area Still if you see dark let it be an iffy one
I put a question mark on them with a pencil and keep them in .
Check again see if it grows in a few more days
Some ppl put a line where they see the dark area then check some days later to see if the dark area has gotten bigger
if a chicks is in there it should be bigger.
By day you 9 should see if nothing else about 1/2 or 3/4 of the egg will be dark inside.
White eggs you may see veining at day 7 and even movement Darker eggs you can but not as prominent and able to see. You may have a chick there anyway if iffy one .GOOD LUCK ALL !
I think you must have miss read me. The 'free range' that were NOT marked fertile are my 6 live eggs. The two dozen marked 'fertile' were NOT fertile.
I threw out the totally clear ones (and cracked them so I verified no life inside). The 6 that I am calling live are full of red veins and dark eye spots too.