Atlantic Bio-Balls, 150 pcs.

Atlantic's BB1500 contains 150 extremely durable, lightweight Bio-Balls that are easy to clean and reduce channeling. Each ball is 1-1/2" diameter and has nearly 25 square inches of surface area for beneficial bacteria colonization.

• 150 extremely durable bio-balls
• Each ball is 1.5" in diameter 
• Use one box per 18" x 22" media bag