Aquascape® BioBalls™ Biological Filter Media, 100 Pieces Poly Independent laboratory testing confirms that

Independent laboratory testing confirms that the Ultima II filter is superior to three leading bead filter brands in setup

copper and hard water stains

which is then converted into nitrate by Nitrobacter bacteria

Helix Dry Beneficial Bacteria is of the highest quality and contains electrolytes

Aquascape® BioBalls™ Biological Filter Media, 100 Pieces Poly Independent laboratory testing confirms thatAquascape BioBalls are specially designed, with a surface area of 19 square inches per 1. 5" diameter ball. These BioBalls optimize bacteria growth in biological filtration units by providing an ideal habitat for bacteria colonization. Center channel allows balls to be strung together for easy cleaning Textured surface maximizes surface area for bacteria colonization Paddle wheel design breaks water flow for aeration and gas exchange Compact size