boxtech Aquarium Filter Media, Ceramic Biological Filter Media for Marine and Freshwater Fish Tank, PCS of Two Price: $36.99 (as of 14/03/2022 20:21 PST- Details) & FREE Shipping.

Ceramic bio media made of ceramic material, the three-dimensional pores formed by the spheres and spheres produce a powerful bacteria effect 10 times that of the conventional filter materials.
Aquarium Filter Media with VAST SURFACE AREA and OPEN-FLOW POROSITY, leads to effective ammonia and nitrate removal from aquariums and Nitrate Reduction.
With the function of strong absorbing water and not clogging, durable and won’t affect water chemistry, it is more safe for your fish.

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