The Current USA 2" Bioballs make a great biofilter material for aquariums and ponds. When used in trickle tower type filters, their larger diameter is excellent for removing those harmful gases from your water. They can strip CO2, nitrogen and other gases while increasing dissolved oxygen levels dramatically. Higher dissolved oxygen levels mean healthier fish, lower stress levels, higher growth and increased disease resistance.
Flowing Performance: The large spatial areas inside the bioballs allow water to flow through the media with ease, keeping it clean and efficient. While other medias clog and channelize, the plastic construction makes them non-clogging and totally inert. Unlike other plastic media, we made our bioballs negatively bouyant. So instead of seeing them float away, they can be placed in the area of your filter or pond that you want them. Easy to rinse and clean, they are lightweight; so they can be easily used on filter trays without breaking them!