Hello! We have 50 baby chicks being sent to us tomorrow. We currently have the brooder box set up on our porch and need to lay something underneath it. I've seen so many different answers to this questions, but what should I lay underneath the box? We also have an outlet for a bulb. What bulb is best? Again, I have seen so many different answers. We live in South Texas and it is almost 100 degrees F during the day and gets down to about 75 at night. Any info and suggestions would be greatly appreciated!