Aquarium Biological Filter Ceramic Rings Set-500G

500g Aquarium Biological Filter Ceramic Rings Set Material: Ceramic, Stone, Carbon Product dimensions (LWH): 16 x 10 x 3 cm Package dimensions (LWH): 16 x 10 x 3 cm Weight: 500 g Features Bio balls ceramic rings provide nice home for beneficial bacteria, encourages growth of biological colonies and holds a lot of beneficial bacteria, which will create the most suitable living environment for your fish Aquarium filter media set combines with a variety of filter materials, scientific and effective mixing ratio, makes fish tank filter works better Biological filter can filter and purify water in all directions, improve the quality of aquarium water, eliminate impurities and stabilize PH, Keep the tank in a stable and clear state Package Included: 500gAquarium Biological Filter Ceramic Rings 1x Carrying bag