300g/500g/1000g Nano Aquarium Fish Tank Filter Media Hollow Particles Biological Ball Bio filter for Aquarium Accessories Large

300g/500g/1000g Nano Aquarium Fish Tank Filter Media Hollow Particles Biological Ball Bio filter for Aquarium Accessories Large
Features:
1,Newly upgraded nanospheres. Non powdering, high-temperature firing, sturdy and durable.
2, Full of rich variety of natural elements and essential minerals and trace elements.
3, PH Neutral. Great help to restore the natural water quality, and provide the most suitable living environment for your fishes.
4, Won't dirt water, absorb ammonia, and other toxic substances in water.
5, Hollow design, porous and will be good for Microbial reproduction.
6, Long life time. The little holes are not easy to be blocked.
Specification:

Material: Hollow Particles
Color:as picture
Size: about 3cmx3cm
Including:

300g/500g/1000g Bio Balls Filter Media Hollow Particles Aquarium Filter.