I am in Florida, and these were shipped eggs but the temp and humidity have been what I read up on. I am just frustrated bcoz I have tried 3 hatches of chickens and either had no development or development to day 18 then nothing.
Was so hoping this quail hatch would go better.
And you already knew they were shipped lol got them from you!
First let me say that I agree with others here who have suggested local eggs first to work out the bugs in your bator..
Now on to you rother problems..
have you completely disinfected your incubator (bleach solution or oxine)?
if not .. do that before you set another egg.. AND do it between each hatch.. you have to get every nook and cranny of the incubator... bacteria is capable of hiding everywhere.. so get it as clean as possible..
Second.. does your bator have ANY vents?... if so leave them open throughout the entire incubation AND hatch.. if it's a homemade bator and doesn't have any vents.. MAKE SOME... and I mean a lot of them.. my coolerbators have holes drilled along the top and bottom edges as well as the lid being open a good half inch and stays that way even during hatch...
for chicks to die that late (day 18) tells me your problem with those is either a bacterial issue or carbon dioxide poisoning .. disinfecting will help with any bacterial issues and leaving vents wide open throughout incubation and hatch prevents carbon dioxide from building up...
for the non developing eggs.. you are either getting infertile eggs or the eggs are being damaged in shipping... buying some local eggs SHOULD rule out the damaged issue.. but when you do find locals take some padding or even a pillow with you inside of a box to set the eggs on.. it will reduce any vibrations you would get during the drive bringing them home..
I would also suggest investing in some oxine for egg dipping.. it helps a lot with eggs from unknown sources as well as if the eggs were washed by the previous owner.. granted you can't do anything about the bacteria which may already be IN the egg.. but you can make sure the eggs are as germ free as possible on the shell if you are having bacterial issues..
I rarely dip eggs.. the ones that I do are shipped because a lot of times I do get improperly washed eggs from sellers who think they are doing a good job but are infact ruining the eggs because they didn't know the correct way to wash them... (just got a shipment last week of weeping eggs.. they were probably washed by the seller since every darn egg was weeping on arrival)..