Of all the Aqua Soil types, including the old Amazonia I & Amazonia II, Aqua Soil NEW Amazonia receives our highest recommendation for best plant growth and long term management. Designed to create the image of Amazonia. Create an aquascape depicting the fertile South American rainforest with the dynamic alternation of rainy and dry seasons. Normal and Powder Type available. In addition to the original Aqua Soil Amazonia features, NEW Amazonia has been improved with the following: 1. Amazonia makes aquarium water a bit acidic. Aqua Soil lowers pH and KH, and makes an idealistic environment for plants and fish. 2. New Amazonia contains rich organic acid and nitrogen level. Organic substances in the soil are effective for keeping shrimp in healthy condition. 3. Its pebbles are hard to crumble. The humic acid helps the plant growth, and hard-to-crumble pebbles do not cause water coloring/cloudiness. Designed to create the image of Amazonia. Create an aquascape depicting the fertile South American rainforest with the dynamic alternation of rainy and dry seasons. Normal and Powder Type available. Use POWDER-TYPE Aqua Soil as a thin top layer for a clean, consistent appearance and also to keep the thin runners of foreground plants such asEleocharis acicularis from growing too far downward into the substrate. Features " Made from specially processed natural material from the earth. " Colloid particles capture dirt floating in the water, without any chemical treatment. " Gives clarity to the water and creates conditions ideal for healthy growth of aquatic plants. " Helps to lower the hardness level of the water. " Helps to bring the pH level of the water down to an ideal level for most of the aquatic plants. " Composed of granules of size and density ideal for the fast development of healthy plant root systems, rather conventional substrates such as sand. " Granules maintain their shape for a long period in water, holding air between them, which is vital for the long time maintenance of a planted aquarium. " Used with Power Sand stimulates the fast colonization of bacteria in the substrate and creates perfect conditions for plant root systems. " Most desirable pH level for most aquatic plants(ph 5.5 - 6.5) to develop their root systems. " Available in 3 types to suit your aquarium layout.