Ieron 50 Pcs Bio Porous Filter 16mm Biochemical Ball Water Filter Material with Cotton for Fish Tank Pond Aquarium Waterfall Fountain

• Package---You will get 50 pieces of bio-porous filter.
• Material---These filter balls are made of plastic and cotton, odorless and durable, and reusable.
• Feature-- When the water flows through internal space, prolonged the time, using the nitrifying bacteria to achieve the effect of biochemical filtration.
• Large Volume-- Strengthened the effect of filtering bacteria, lightweight and easy to carry.
• Multipurpose--- The bio ball is very suitable for use in fish tanks, ponds, and aquariums. Can add them to tank filters, top filters, fish pond filters bottom filters, etc.

Feature: How it works: When the water flows through internal space, for a prolonged time, using the nitrifying bacteria to achieve the effect of biochemical filtration. Multipurpose: The bio ball is very suitable for use in fish tanks, ponds, and aquariums. Can add them to tank filters, top filters, fish pond filters bottom filters, etc. Item Specifications: Colour: Black Material: Plastic, cotton Quantity:50 Pieces Package List: 50pcs * ieron Biochemical Balls