Supra Biological Pond Filter Medium
A visibly porous inert filter medium especially suited to pond filtration. Economical to use and supplied in 500gm bags.
SUPRA + has a huge biologically active surface area (2600 sq ft per 18 oz pack) allowing for super efficient reduction of lethal nitrite and ammonia in pond and aquarium water. This high surface area is vitally important for cultivating the massive populations of beneficial bacteria that are required by modern compact filtration systems.
See What Our Customers Are Saying