Can someone please let me know if compressed aspen pellets and "Tek Fresh"- as it's called ( it's shredded egg carton container material, the gray stuff ) , both used together is acceptable bedding material for large colonies of mice? I'm a bit new to the mouse keeping/breeding scene to be "in the know."
P.S.- does either Tek Fresh and/or aspen pellets have a "shelf life" where it isn't recommended to be used any more after a certain amount of time?
Thanks very much for any info!
John

