Fish Tank Filter Material Biochemical Ball Filter Box Filter Material Nitrifying Bacteria Bacterial House Fish tank bio culture ball filter material bacteri Nitrifying Magic Ball Fish Tank 3D Rotating Filter Material High Density Bottom Filter Sponge Ball

Feature:The bio-sponge inside provide more surface area for growth of beneficial Bio-Spira bacteria.Our large bio balls spherical shape to pack tightly into any shape or filter type without losing surface area.Molded from high density plastic, these bio media balls are lightweight but tough enough to keep their shape and will never degrade or wear out.This makes these heavy-duty bio balls perfect for pond filters for outdoor ponds or as a bio media for aquarium filter.The bio balls provide biological filtration, removing toxic ammonia and nitrite.In the event of excessive buildup, you may gently rinse with water from an established aquarium, if desired.Great for fresh or saltwater aquarium filtration systems.Usage:1.Soak in warm water for 30 minutes before use to fully expand the hollow polyester fibers.2.Pour the soaked filter balls into the filter tank. As a general guideline, use approximately 30 balls per 100 liters of water. However, if the water flow rate is high enough to let the balls roll freely, you may reduce the quantity by one-third. Next, turn on the water pump to enable normal water circulation, which will keep the balls rotating and rolling. Additionally, placing an aeration air stone directly opposite the filter tank’s water outlet can further improve its performance.