Pond Care Ammo Rocks for Ponds, 10 lb.

Pond Care Ammo Rocks for Ponds, 10 lb. The perfect biological filter media. Natural ion-exchange resins trap toxic ammonia on the surface, then nitrifying bacteria is stimulated by the concentration of ammonia and improves the development of the biological filter.

Pond Care Ammo Rocks for Ponds, 10 lb.
The perfect biological filter media. Natural ion-exchange resins trap toxic ammonia on the surface, then nitrifying bacteria is stimulated by the concentration of ammonia and improves the development of the biological filter.