My chicks are 8 weeks now, they grow so fast!! Will theybe ok outside now.? Nights here are in the mid 40s now, they spend all day outside and I bring them in at night. Also, the place we got them from said they should start eating all purpose poultry feed at 6-8 weeks, I got the bag today and it reccomends starting them on it at 16 weeks, so I am wondering how all of you feed your older chicks. Thanks!