Is it ok to put together a tamed and an untamed cockatiel inside one cage?

You think you're going to get chicks from eggs you bought at the market?! Those are not fertilized eggs. Those are just the eggs the chickens lay every day.

No male (rooster) involved. There has to be a rooster to fertilize then the eggs are laid with chicks inside them. And do your darn research BEFORE you buy eggs with chicks because you're likely going to kill them before they hatch.

The correct temp will B 99.5 degrees F but it is only one necessity. U need an accurately functioning incubator 2 hatch eggs, turn them daily, stop turning them at day 18, maintain 80% humidity and raise the humidity to 90% the last three days of the 21 day incubation period.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.