I just ordered 15 wheaten OEGB from Cackle,(they'll be here August 12) and this is my first time reiciving shipped chicks, and I have a few questions. 1. Do I need to buy electrolytes, and if so, what brand? 2. What type of bedding should I use? I usually use newspaper with Aspen but do they need something else? 3. Should I grind their food to make it smaller? 4. What time does the post office call, or does the Hatchery call?