Bio Balls 36mm with Foam Insert
Bio Balls 36mm are geometrically designed to increases surface area to cultivate more beneficial bacteria. When used in a wet and dry filters they create the greatest possible mix of air and water which promotes gas exchange and increases oxygen level. This intern maximises the growth of nitrifying bacteria. Bio Balls 36mm are totally inert and safe for use in fresh or saltwater aquariums.
Pack Size: 30 balls
Size (mm): 36 diameter
Area: appox 1 litre