The Dophin FM908 Bacteria Growing Bio-Ball is a 500 g biological filter medium made from coarse, porous ceramic spheres designed to house beneficial nitrifying bacteria. It works in both freshwater and marine filtration systems to break down toxic ammonia and nitrite.

Key Specifications & Features:

• Pack Weight and Model: The product is sold under model code FM908 in a standard 500 g pack.
• Porous Structure: The off-white spheres have a coarse, porous surface that allows water to pass through easily while providing extensive surface area for bacteria colonization.
• Negative Ion Release: The bioballs release negative ions to accelerate the oxidation of harmful ammonia and nitrite.
• System Compatibility: It is suitable for indoor and outdoor setups across both freshwater and marine aquariums, including submerged and trickle-style filters.

Usage & Maintenance:

• Filter Placement: Place the bio-balls in your filter or sump after mechanical filter foam. Trapping large debris first prevents waste from clogging the pores of the media.
• Cleaning Routine: Rinse the balls gently using removed aquarium water only when they become clogged with debris. Using tap water will kill the established beneficial bacteria.
• Replacement: Avoid replacing all biological media at the same time to prevent disrupting your tank’s nitrogen cycle.