Aqua Soil-Amazonia II is a substrate material produced from natural black soil which promotes healthy aquatic plant growth and less cloudiness of aquarium water.
Powder type is not available for Amazonia II.
AQUA SOIL-Amazonia II is a new type of substrate which elutes about same amount of organic materials as Amazonia soil (measured with COD level), and twice as much as nitrogen content (measured with NH4, NO2, and NO3 level) of AQUA SOIL-Amazonia Light, though pH value does not drop like Amazonia Light.