Akadama (2-5 mm)

Akadama (2-5 mm) literally means “Red Ball Soil” and is a volcanic-derived clay collected at a depth of 3 meters from the subsoil of Cryptomerie forests in Japan. Akadama is harvested and dried, heated to remove organisms and pests, and pulverized into different sizes.

Medium chemical analysis:
Oxygen (O): 54.34%;
Silicon (Si): 15.99%;
Aluminium (Al): 13.91%;
Phosphorus (P): 0.10%;
Potassium (K): 0.63%;
Magnesium (Mg): 0.54%;
Iron (Fe): 7.68%;
Calcium (Ca): 0.11%;
Manganese (Mn): 0.30%;
Titanium (Ti): 0.62%;
Sulphur (S): 0.23%;
Sodium (Na): 0.34%;
Carbon (C): 5.80%.

Technical characteristics
pH: 6.5 – 6.9

Additional info:
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