It also allows
...Ekoneem Antiseptic Natural Oil is suitable for both dogs & cats. It is high quality pure organic cold-pressed Indian neem oil
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This Eheim Substrat pro 1 litre filter media is sintered pearl-shaped glass for biological filtration. Biological media creates the perfect conditions for the colonisation of healthy bacteria that break down harmful toxins. The entire filter volume can be utilised because of the pearl-like anti-blocking shape of this media
- this allows longer intervals between cleaning. Use this media in the Eheim range of internal filters. You will also require a layer of mechanical media. In unison using these media will take out waste from the water.