Just got my new flock...1st time raising chickens. I was given a mix that came with the coop I bought. One 1 year old hen laying now, two 3 month old pullets, two 2 month old pullets and 1 adult rooster, I was told to feed them Nutrena Layer Pellets. I got them 5 days ago. Now I'm reading that Layer Pellets can hurt younger birds. have I done any damage? Going out tomorrow to buy appropriate food...should I buy starter food for all since they are all in same tractor? And put out crushed egg shell for layers? Read that on different post. I am really worried that I hurt my little ones. Thank you for advice.