Thank you. Will do. Yes it looks really strange. I can see a dark blob but no veins. It's so sad I think it has died as it doesn't look like it should but would like to hold on to hope
Sorry should have said - it's a duck.Just checking; is it a chicken egg? If so, 37.5 c should be good for a forced air incubator ( one with a fan to move the warm air around) a little higher for a still air incubator. 55% humidity is fine until lockdown when you want to bump it up to about 70% Don’t worry if temp or humidity fluctuate a little. That would happen if the egg was hatched naturally and the embryo can handle slight or brief variances.
. I think for ducks, humidity is supposed to be 55% for the first 25 days and then closer to 80% once they get ready to hatch. I hope they hatch for you 
Thank you so much. I'm really upset I trusted those 2 thermometers I put in at first and ran it at a higher temperature those first couple of days. The old digital one was going lower and lower - it's telling me 34.8*C at the moment! But the new thermometers agree with the incubator and are holding steady. What thermometer do you use? How do you know you can trust a thermometer - I tested the hygrometer using the salt water in a bag method but I don't know how to calibrate a thermometer.Yeah, I hatch eggs using a little Amazon incubator too, lol! It sounds like your incubator thermometer is pretty accurate. Thermometer readings can vary just slightly depending on location in the incubator, especially, it seems, with the smaller incubators. Really though, a degree up or down most likely will just result in the eggs hatching a day early or late. Probably not a big deal
Honestly, the first time I hatched with an incubator I was freaking out over the temperature being just right. But gradually I’ve decided to just trust the thermometer in the incubator and go with it.
. If you’re interested, there’s a forum called Backyard Chickens that’s all about fowl. They’re a great resource for incubation questions and all kinds of other questions relating to poultry and fowl! I’ve learned a lot from that forum .Thank you. I've joined Backyard Chickens and asked on there too. This is a couple days on now. What do you think might be happening inside?Honestly, the first time I hatched with an incubator I was freaking out over the temperature being just right. But gradually I’ve decided to just trust the thermometer in the incubator and go with it.
Yeah that black shadow's definitely getting bigger. But I don't know if it might be bacteria/fungus/decomposition. Should the yolk get mis-shaped like that - I'm not sure if it looks like the yolk's starting to mix with the albumin like the membrane's broken? I'll keep it in my incubator and see what happens over the next few days. I want to give it every chance even if it's only a tiny chance. Just a bit worried about it exploding if it's rotting as I've heard that can be really awful to deal with and clean up.
Yes, the fact that there don’t seem to be obvious veins is pretty concerning, but I guess if it were me I would let it go just a little longer. Although I’ve heard of the whole exploding rotten egg thing, it seems super rare. I’ve let eggs go and had hens who sat on eggs long past their time without any incidents so hopefully that won’t be a problem for you. I just hope the little duck is alive in there.
