Aqua Nova NBB-60 Bioballs 60pcs

Aqua Nova NBB-60 Bio Balls are a biological filter medium designed for the biological and mechanical treatment of water in aquariums and ponds.
The special structure of the Bio Balls provides a large surface area for the colonization and growth of beneficial nitrifying bacteria, which contribute to the aquarium's biological balance and the conversion of harmful nitrogen compounds. The balls allow for good water circulation through the filter and are suitable for use in external filters, sumps, overflow filters, and pond filtration systems. The set includes 60 Bio Balls (32 mm in diameter) contained in a practical, sealable black mesh bag, ensuring easy placement, removal, and maintenance within the filter.  ...More