We have 9 chicks. 5 are 2 weeks old and 4 are 1 week old. We are new and wanting to know how long they need to stay in the brooder box with the heat lamp? At what age can we put them in the coop with the heat lamp? I was thinking about locking them in the sleeping area as it is more protected and keeping the heat lamp in there for a few more weeks. Also, at what age can we start feeding "treats" like brussel sprouts, meal worms etc AND, I have a whole bag of starter feed but it says to only feed for the first 10 days. Will it hurt them to keep using it? We won't have anymore chicks to feed and I don't want to waste it. Thanks so much!!!