I am getting fertile BBS Marans and Swedish Flower Hen eggs from an NPIP certified farm near me- no shipping 
I am super nervous about the Marans eggs and I’m wondering if anyone on BYC can help coach me through candling the eggs when the time comes. I don’t see any articles on dark or colored egg candling on BYC.
I have a 1 yr old Blue Copper Marans from this same farm and hens eggs are dark with thick shells-color about a 6 on Marans scale.
So questions come up when considering these two breeds in the same incubator:
Is there any red flag concern to incubating both breeds together in a Nurture right 360?
I’ve read about dry hatch but my RH is 25%, far too low for SFH and prob too low for Marans. I was thinking a 30-35% until lockdown-not sure how SFH would do at that low RH.
Thought? Or maybe tell me I’m nuts to try Marans. The eggs are not cheap but the birds and eggs are drop dead gorgeous, so any advice for a realistic successful hatch rate is appreciated.
Thx BYC gang!

I am super nervous about the Marans eggs and I’m wondering if anyone on BYC can help coach me through candling the eggs when the time comes. I don’t see any articles on dark or colored egg candling on BYC.
I have a 1 yr old Blue Copper Marans from this same farm and hens eggs are dark with thick shells-color about a 6 on Marans scale.
So questions come up when considering these two breeds in the same incubator:
Is there any red flag concern to incubating both breeds together in a Nurture right 360?
I’ve read about dry hatch but my RH is 25%, far too low for SFH and prob too low for Marans. I was thinking a 30-35% until lockdown-not sure how SFH would do at that low RH.
Thought? Or maybe tell me I’m nuts to try Marans. The eggs are not cheap but the birds and eggs are drop dead gorgeous, so any advice for a realistic successful hatch rate is appreciated.
Thx BYC gang!