Description
- Suitable for fresh water- salt water fish tank.
- To fully exert biological filtration capacity of law porous filter ring.
- This product is mix made of the softy active carbon and ceramic.
- Chemically stable- fully in line with the original micro-organisms living chemical environment.
- High permeability- which can be aerobic nitrification and anaerobic denitrification- to make the water more stable- is the best biological filter material.