High Quality Natural Coral Bone Biochemical Ball Filter Media Nitrifying Bacteria House Fish Tank Clean Water Materials

2g Natural Coral Bone Biochemical Ball Filter Media Nitrifying Bacteria House Aquarium Filter Acceories For Fish Tank Water Cleaning

Features:

1, From natural Coral Bone

2, Full of rich variety of natural elements and eential 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, Porous will be good for Microbial reproduction.6, Long life time. The little holes are not easy to be blocked.

Specification:Material: Natural Coral BoneColor: Natural Coral Bone

Diameter: about 1-5cm

Including:2g Coral Bone Aquarium Filter(with free filter mesh bag)/0g coral Bone with bag