Bio Ball 36MM / 25 pcs

Bio Balls with Sponge Inside Filtration Media for Aquariums and Ponds, 36 mm, 25 Pieces

• Maximize multifaceted filtration area to support biological filtration and help promote the growth of beneficial bacteria.
• Easy to rinse and clean, they are lightweight
• Safe for use in fresh or saltwater aquariums, cultivates nitrifying bacteria use in biological filters and gas exchange reactors
• The hollow structure of the Bio ball will divide the water into a thin stream since there is no resistance when the water flows through. So that it can crush the large pieces of dirt and then make an excellent filtering effect.