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The CROCI AMTRA FINE BRILLIAND BLACK SAND is a granular high-quality natural black sand. Suitable for aquariums and terrariums, it ensures biofiltration by supporting colonies of beneficial aerobic bacteria that convert ammonia into less toxic compounds. It creates the appropriate conditions for species of aquatic animals that live in sand and provides support for various beneficial micro-producers such as amphipods, copepods, etc.
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