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The lid of the container has been skilfully designed to allow the operation of as many extensions as required using only one air pump
and 2-carboxy-3-keto-D-arabinitol 1
The design is novel and the appearance is beautiful
Model: HC-150A
Boyu - Bio Ceramic Rings Size:CR-300 | 300 grams The lid of the container1. Suitable for fresh water salt water fish tank. 2. To fully exert biological filtration capacity of law porous filter ring. 3. This product is mix made of the softy active carbon and ceramic. 4. Chemically stable fully in line with the original micro organisms living chemical environment. 5. High permeability which can be aerobic nitrification and anaerobic denitrification to make the water more stable is the best biological filter material.
