The ADA Aqua Soil Amazonia Ver. 2 is a new updated and upgraded plant substrate that has a combination of the best of the "Original Amazonia Aqua Soil" and the recently released Amazonia II. Serious plant and aquascape affectionatos already are familiar with the #1 rated Freshwater planted aquarium substrate in the world - Amazonia, but not the newest Ver.2. ADA has taken the Amazonia II, which was easier to start an aquarium with and added (in a separate include packet in pellet form) the similar ingredients found in the original Amazonia Aqua Soil. Now you have a choice to either add these pellets under the soil for the most benifits on top of the ADA Power Sand, or to not add it at all.