About This

• Free media bag for easy handling
• BIO-Balls do not require replacement unless damaged or destroyed
• bio-sponge inside provide more surface area for growth of beneficial Bio-Spira bacteria
• In the event of excessive buildup, you may gently rinse with water from an established aquarium, if desired
• Diameter of bio ball: 26mm (1inch), Package includes: 4x 50pcs bioball