Per a online catalog I have:
Cell Pore BioMedia
Cell pore media can be reusede repeatedly and they provide ten times more surface area than any current bio filter medium. They effectively remove more ammonia, nitrite and nitrate. Simply rinse in warm water to reuse. Great for biorocker wet/dry filter. Made of non clogging, open pore ceramic glass foam
Looks like a alternative to bio balls. My lfs said they were good but you know how that is.
Just curious if anyone uses it or has heard of it.