Hi everyone! I think I need a bit of advice here please.. My parents bought be a couple of incubators over my birthday and Christmas for me. I hatched some Plymouth rocks and Pure Australorps from my home flock, who all grew strong and large. I later bought some fertile Australorp eggs to bring in new blood. They were set in, and I had a good hatch rate, however, they seem to be a bit weak. Out of the seven I hatched, I lost one who suddenly dropped weak at day two, and another one at day three. They have weak pale looking legs compared to my home flock, and the weak ones will sit in the corner, chirping and not with the group under the lamp. I was wondering if its some sort of deficiency in what I'm providing (medicated chick starter), some sort of illness, or a deficiency in the parent flock? Sorry for being long. Thanks in Advance.