I'm going to try my hand at hatching guineas. I've attempted to help my mother and she got 6 live out of about two dozen but only two made it. So I'm going to try to incubate a half batch of guineas and a half of Marans. Do what do I need to know about hatching two kinds of eggs. I know the guineas will take longer. I'm using a forced air HovaBator with automatic turner.