Our chicks should be arriving Feb 11 or thereabouts. I have read and read and read and I have some expert chicken-raising friends on standby. We have 25 chicks coming but will re-home half because I don't want a flock that large. I have two questions to start: at what age is it OK to start giving them food in addition to chick feed? I already use food grade DE for pest control (we are in south central TX and bugs, flies, ants scorpions etc...are issues pretty much year round) should I wait until they are out in their coop before adding DE to their environment or should I put a little in their bedding in the brooder?