I have chicks that are a week old - i am raising them inside and have had them under a 250W redbulb. They are doing well and are all over the brooder so i am thinking they are pleased with the temps. At one point does everyone change the temp and switch to less wattage bulbs? I had heard minus 5 degrees each week till they are ready to go outside? Just like to hear peoples usual routines on this topic Thanks!