ok ive got 15% player pellets for the big birds, then i have 15 % layer crumbles, and medicatd crumbles. i have 7 full grown on the layer pellets but thats not what im worried about. my question is when can i switch my 6-7 week olds off of the medicated started and onto the 15% layer crumbles... or can i even do that, should i get a bag of non medicated starter grower crumbles? and how long should i keep my littlest ones on the medicated, can i just wait until the bag runs out and go to the layer crumbles, or put them on starter grower.... i guess i just really need to know the earliest they can go on layer feed?