Incubating duck eggs, I have a few questions

[PuddlesandWaddles]

I put these in last Saturday so today is day 6. I candled them late last night and these are the fertile eggs. How do they look?

These are the ones I think aren’t fertile. Should I go ahead and toss them or wait?

One more question, is this one developing? Thanks!

 

[SilverBirds]

I would toss all of the eggs that aren't developing.

 

[PuddlesandWaddles]

I would toss all of the eggs that aren't developing.

Do you think the last one is developing?

 

[SilverBirds]

Do you think the last one is developing?

No. The black dot looks like the start of bacteria growing.

 

[Birdsarelife]

I wish you luck in hatching them!

 

[PuddlesandWaddles]

No. The black dot looks like the start of bacteria growing.

Oh ok! I will get that out of the incubator as soon as possible. Thank you so much!

 

[PuddlesandWaddles]

I wish you luck in hatching them!

Thanks!