i would say that the humidity inside your tub is probably too low. i would put them on a egg crate inside the container and add more water to the mixture. are you using press and seal as well?.....from what i read the egg the crate is probably one of the best things since the eggs cannot get too wet from touching the substrate and you can always add more water if you need to with that method. i am using it right now in my incubator with my eggs and i'm almost through my 1st week and everything is going well..