We bought a bucket thats 12" High and we bough 50 pounds of play sand.. I think we have to go back out tomorrow and buy more sand so that it fills the bucket more, but at least she has what she needs.
I thought for a while that she might be impacted, because she didn't do her business for like a week :| Scared me and then she did and I was like "Wheew"
So with any luck it was just a scare and she won't lay eggs until after we breed her!