I may have a problem. I have a brooder box that has a thin layer of styrofoam on the bottom under the part wear the waterer is. I have it lined with layers of newspaper. I was gone for an hr and a half. In that time they tore back the paper and ate about a 1/2 dollar size of the foam. Not sure if all ate it. There are 20 chicks in there. What should I do??