This video show the beta model of CPR's Nano reactor running a popular carbon and phosphate-removing filtration media inside of a media bag. The production model Nano reactors will be able to use smaller and granular media without the use of a media bag, but for those lucky customers that have the beta model Nano reactors, besides using the unit for bio-pellets, they can utilize smaller media in this way. Smaller media should not be used with beta versions of this product without making some modification to prevent accidentally spilling the smaller media.