This will be Lucy's second egg laying. I'm assuming she'll do about what she did last time. Stop eating about two weeks before she lays them. There's just one problem. I put her laying bin in the bottom (last time I tried coconut shreds, then coconut shreds with soil, then sand which she much preferred). With the bin sitting in the bottom of her cage for more than just a few days, it has started to smell musty or moldy. I have a new bag of sand, but it is all purpose sand with a Hazard warning (even though it says it's for pet and playground use). Should I switch it out or will the smelly sand be ok?