Contains ion exchange resins to remove calcium, magnesium and soluble heavy metal ions, including iron and copper. Lowers general hardness (GH) and softens water without adding harmful chemicals.
Convenient pouch is fully rechargeable.
Coralife Bio-Balls 1" Mini

Coralife Bio-Balls will enable aquarists to maintain large biological loads in much smaller filter areas. The dramatic increase in surface area is achieved by the unique, geometric design of the smaller, one-inch bio-ball. One gallon of Coralife Bio-Balls, (approximately 300 balls) has a surface area of approximately 21.5 sq. ft.
This increased surface area supports between 45 and 60 gallons of marine life.
Available in a 1-gallon box and a beautiful reusable 5-gallon bucket.
#607918 - 1 gallon box ~ $8.99 
#607925 - 5 gallon bucket ~ $31.99 
CurrentUSA NanoBalls & Mega Balls


Outstanding surface area for superior biological filtration and gas exchange
Establish strong biological filtration in your aquarium
Create a haven for beneficial bacteria to boost biological filtration.
Specially designed to increase aeration and maintain even water flow to maximize efficient biological activity.
#82108 - 2" Mega Balls 125ct ~ $29.99 
#82009 - NanoBalls w/bag 600ct ~ $12.99 
#82016 - NanoBalls w/bag 1000ct ~ $21.99 