I am getting my first baby chicks tomorrow! So exciting! I have a spot light that I know I will need to put a 100watt bulb in on one side of the box I will be using. I know to decrease the heat every week, but how do I do that? What wattage lightbulb do I switch to? Also, I plan to tarp the bottom of the box, but would like to put shavings over the tarp. What type of shavings do I use? TIA!