Direct Info from Product Website : https://www.adana.co.jp/en/contents/products/na_substrate/detail02.html
Aqua Soil-Amazonia Powdered
Amazonia is substrate material, rich in organic acid and nutrients, promoting the growth of aquatic plant roots. By combining with Power Sand, it becomes the ideal substrate for plants. Powder type is used for small size aquarium or for spreading lightly over the normal type Amazonia.
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