Hi . At 3 weeks old the chicks need to be kept at 85 deg. F. and the temp. can be dropped 5 degs F for each week until they fully feather out. The brooder heat lamp can be raised higher each week to lower the temp in the brooder They should be feed Medicated Starter/Grower feed until they are 8 weeks old. It is a good idea to add a little apple cider vinegar to their water too as, it is very good for them. Congrats on the new chicks.
