Aquatic Experts Bio Balls Filter Media - 1.5 Inch Large Bio Ball for Pond Filter - Perfect Bio Balls For Pond Filter Med

OUTSTANDING FILTRATION! Each bio ball is covered in spines to dramatically increase the surface area of each ball to nearly 2 square feet providing space for a massive number of beneficial bacteria to colonize. These good bacteria break down harmful organic waste keeping your aquatic friends safe. You will receive approximately 2000 1-1/2-inch bioballs in a ready to use black mesh zippered bag. Just rinse and use.
TOUGH AND UNIQUE! Our bio balls