MOONSTONE White Mineral Stone - Genuine Japanese Montmorillonite 300 grams


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Our authentic Japanese Montmorillonite is collected from a pollution-free environment to ensure it is 100% aquatic safe. Montmorillonite is rich in essential minerals like calcium which aids moulting and proper shell development in shrimp. 

The remarkable mineral stone is packed full of negatively charged ions, which absorb heavy metals and contaminants from the water keeping the aquarium crystal clear and healthy. The essential minerals released by Montmorillonite not only benefits the aquarium inhabitants but also the aquarium plants while naturally buffering the water.

NOTE: Please beware of cheap Montmorillonite sold on large online marketplaces. These marketplaces are flooded with Calcite being sold as Montmorillonite, Calcite can be detrimental to your shrimp and other aquarium inhabitants. 


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  • Around 6 Pieces per pack.
  • Weight 300grams.
  • We recommend 10grams of Montmorillonite for 100 litres of water.
  • 100% Authentic Japanese Montmorillonite.
  • Montmorillonite is also great for snails, vampire crabs and crayfish. 
  • Collected from a chemical and pollution-free environment.
  • Negatively charged ions absorb toxins improving water quality.
  • Dissolves slower than other mineral-rich stones.
  • Releases beneficial minerals such as calcium which aids moulting.
  • This product will raise the GH of the aquarium slightly.
  • Provides a supplement food source for aquarium Shrimp.
  • The Montmorillonite will slowly dissolve over time.
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    MOONSTONE White Mineral Stone - Genuine Japanese Montmorillonite 300 grams