I have 15, seven week old chicks that I'd like to add to my 2 silkies and 2 Road Island reds, which are 3 years old. They have had chicken wire separate them for 4 weeks now and I think they'll do fine but I don't know how to handle the food. The chicks shouldn't eat the egg laying food, and the hens shouldn't eat the medicated start and grow food. How do people handle this? Or do they keep them separated until the chicks can eat the layer food? Or am I crazy to try to mix them now?