Miarhb 10Pcs Aquarium Porous Ceramic Filter Media Net Bag Biological Ball Fish Tank

40Pcs AquariumPorous Ceramic Filter Media Net Bag Biological Ball Fish TankFeatures:Material: ceramicDiameterof ball: 21mmThisis Breathing Bio Ball made by nano technology. TheBio Ball were Fired by high temperature. GreatMaterial for the growth of nitrifying bacteria. Fullof rich variety of natural elements and essential minerals and traceelements.Greathelp to restore the natural water quality, and provide the most suitableliving environment for your fishes. Pleaseallow 1-3cm differences due to manual measurementThe realcolor may be slightly different from the photo, due to a variety of factorssuch as computer screen contrast or light.Packageinculded:40PcsBio Balls

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