you can do both. Just set the chicken eggs on the right date then the other on their date, we are just wanting them to hatch on NYDI have a question I joined the hatch along or I think I did it right . But I have serama and jumbo brown quail and my button even laid an egg today , my question is do I have to pick one to use for the hatch along or can I add each on there own day so they are all due the same day?. Thank you