okay here is the deal... I have only space for one incubator. I can use either a still air or a fan. but again only have room for one! I also have one broody hen. Since I get 1 egg a day from another hen and can only hold the eggs for what 14 days?? and it takes 21 days for eggs to hatch... I will have a weeks worth of eggs I can't do anything with... (but of course eat but I don't really want to) Would it be okay if I put some eggs under the broody for half of the incubating cycle and then replace them with new eggs.... also can you hatch under a fan?? I think I read that it's best under a still air?? how to you switch with out really messing things up too bad.