Day 23 and seeing a little shadow through the air pocket need some advice as this is my first hatch :)

[New duck mommy 2021]

Hello BYC family
I have 6 Duck eggs in my incubator. They are a day apart minus one egg that didn’t take
Today is day 23 for the oldest egg. I just turned them and the air pocket has got so much bigger since last night. I can also see a little shadow moving through it. Not an internal pip yet. It’s very solid through the egg with just a little fluid you can see. The baby is moving. At this point should I stop turning this egg and put it into lockdown or stop turning but not increase my humidity until it internal pips ?
I have a second incubator ready to move 4 of the eggs as I was going to keep these two a day apart together for lockdown. I run a little giant forced air. Heat has been 99.5-100 and humidity has been 42-49 mostly around 49
I have several other hygrometers in there for extra readings as I was nervous on getting it right
This part is so exciting but beyond stressful
If there is anyone who can help me through this next week of what to expect and watch for they would be greatly appreciated

 

[MGG]

Hello BYC family
I have 6 Duck eggs in my incubator. They are a day apart minus one egg that didn’t take
Today is day 23 for the oldest egg. I just turned them and the air pocket has got so much bigger since last night. I can also see a little shadow moving through it. Not an internal pip yet. It’s very solid through the egg with just a little fluid you can see. The baby is moving. At this point should I stop turning this egg and put it into lockdown or stop turning but not increase my humidity until it internal pips ?
I have a second incubator ready to move 4 of the eggs as I was going to keep these two a day apart together for lockdown. I run a little giant forced air. Heat has been 99.5-100 and humidity has been 42-49 mostly around 49
I have several other hygrometers in there for extra readings as I was nervous on getting it right
This part is so exciting but beyond stressful
If there is anyone who can help me through this next week of what to expect and watch for they would be greatly appreciated

Looking good!
Yes, you can stop turning them now. I stop turning during the second week usually because I have to manually turn (time consuming, lol) and because the embryo can move freely now so it's no longer necessary.
I would wait to up the humidity, if it's too high moisture could build up in the air cell and drown the duckling when it finally internally pips.
What kind of ducks are these?

 

[New duck mommy 2021]

Here is a video of the shadowing I see on the left side of the egg as well as a picture showing the logic area that’s left

 

[New duck mommy 2021]

Thank you. I figured waiting to up humidity was best till they internal pip These are a mix breed of Pekin and khaki Campbell.
I started to turn only 3 times a day after week 2 I was turning 4-5 times a day the first two weeks