When we move our eggs to the hatcher, we put them in egg cartons with the top cut off and just use the egg holding part...has helped alot with hatch rates....
A touch of Oxine in the drinking water and also when incubator is running and hatching the wee little babes...put a little oxine in the water pan and clean the incubator out with Oxine diluted with water....Avia Charge is a great product for the breeders....Tips for helping to hatch the new babies