This is a great substrate to use and it lasts a really long time. The owner Daryl is a great guy. I have a tegu which loves to bury itself in it. You can use it for all reptiles and he will ship it directly to your house. All you have to do is spot clean it and it will last forever. Check out the site if you want http://www.creaturetravelers.com/Products/ProductsGroups/pages/reptiles2.htm
I use the soft chips for the whole tank and the reptile fiber for the hide box.
He has larger quantities of soft chips available I believe