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The biological filter mat is crafted from premium materials that support the growth of nitrobacteria. Its robust filaments and firm texture make it an excellent choice as mid-layer filter material. Healthy koi rely on pristine water, which is why both mechanical and biological filtration are essential for maintaining a natural equilibrium in the koi pond. Biological filtration effectively eliminates harmful ammonia and nitrites through beneficial bacteria. The superior filter medium offers a large surface area for bacteria to thrive while ensuring adequate water flow through the filter without causing blockages.
