First, I have a question: do we count the day we set eggs as Day 1? If so...
Tonight (Day 7 I think, if I set on Sunday, Valentine's Day, 2/14 and this is Saturday, 2/20 ) I did my first candling.
The good news was that all eggs are viable!
The bad news is that I'm pretty sure my humidity has been too low. I've had trouble finding a good rule of thumb here at BYC. I have read Hatching 101 many times over (thanks so much Sally Sunshine!) and the only shooting range I could find was 30%, so that's where I started. Not only was I aiming low, I guess, but also I had trouble holding the incubator steady at my guessed humidity rate. I have a hydrometer in the incubator, and have been trying to keep it in the 25% to 30% range, but as I posted earlier, the Incuview is way sensitive and it's been 10% plenty of the time when I take a look. SIGH!
I'm a first-time hatcher and this is my first candling, but I think the air sacks looked larger than they should have, and I know that, having weighed at the beginning and then again tonight, and the weight loss is too high: the average of the hatch has them having lost 7%, which means half of what they should lose in the entire hatch.
So, I've now read an off-BYC article that says humidity should be around 40-50% for the whole hatch. Is that what others of you do? I know varying environments/egg types make for differences, but could someone please please help me out and share with me a good average percentage to shoot for? Is 40-50% what you do?
Also, have I ruined this hatch, or can I make it back up? Should I compensate by working up to 60% for the next few days and then weighing again?
THANKS in advance for any help with this!