I bought 2 bags for set up new shrimp tank, but I realized that I only can use 1 bag .
In addition to the original Aqua Soil Amazonia features, NEW Amazonia has been improved with the following:
•Amazonia makes aquarium water a bit acidic. Aqua Soil lowers pH and KH, and makes an idealistic environment for plants and fish.
•New Amazonia contains rich organic acid and nitrogen level. Organic substances in the soil are effective for keeping shrimp in healthy condition.
•Its pebbles are hard to crumble. The humic acid helps the plant growth, and hard-to-crumble pebbles do not cause water coloring/cloudiness.