Does any one know if an egg is not developing would the air space keep growing or not?, also what does an egg with no air space mean??. I ask because i got 1 egg with no air space and a few others that don't look like they have developed but the airspace is growing. They have been in the bator for ten days. If i do float test on the eggs that are not showing development should they sink? i just want to be sure before i start chucking eggs out.