Aspen - Is a hard wood and a good choice for litter. International student health insurance for foreign students Because Aspen can be home to mites it is important to freeze it before placing in the cage. It is also light and can be messy if your rats like to dig around in it.
CareFresh – Made from paper pulp absorbs well and many people are quite happy with it. It can get a bad smell when wet so daily spot cleaning is recommended.