Description
Product details of 100g Ceramic Rings For Fish Tank Bacteria Bio Filter Porous Off white Biological Rings Bacteria Building House Aquarium Off White
- 1, The Bio Rings were fired by high temperature.
- 2, Great material for the growth of nitrifying bacteria.
- 3, PH Neutral.
- 4, Suitalbe for fresh water and sea water tank.
- 5, Do not often change these rings.
- 6, After six month used, change half of them and use new rings with the rest old rings
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