Ever since Jeff mentioned he wouldn't use Amazonia II, people really seem to have it out for the Amazonia II. I've been using it and have had absolutely no problems; no clouding, no bacterial blooms, no decomposition, no nothing! I have seen exceptional growth in my stems; my d. diandra that I planted two weeks ago (ut was about 5" tall) is now only a few inches from the waters surface (I have a 25" tall tank). Now I know no one's trying to suggest that Amazonia II isn't good at growing things, because we all know that simply isn't the case. Let me post the specs anyway:
Aqua Soil Amazonia has been used by many planted aquarium hobbyists around the world, as base substrate material for growing aquatic plants. Aqua Soil Amazonia is produced from black soil with rich organic substances, helping the plant growth, and most aquatic plant species can grow in healthy condition with Amazonia. But, in the alkaline base water*, there are rare case reports that organic substance such as humic acid may seep into the water, and cause water coloring or cloudiness. So this time Aqua Design Amano introduced "Aqua Soil-Amazonia II", a new Amazonia type substrate, produced with different black soil mixture ratio, preventing water coloring or cloudiness. As the base color or plant growing pattern is slightly different from original Amazonia. Please select them according to your needs and preference. But if your base water* is alkaline, we recommend to use Amazonia II.
*Base Water refers to all types of water used for the aquarium, including tap water, groundwater, or aquarium tank water.
1. Amazonia II has less incident of water coloring or cloudiness.
2. It contains black soil, appropriate for water plants growth, and its natural color matches well with planted aquarium.
3. It lowers pH and KH, and makes ideal water condition for most plants and tropical fish.
Completely new substrate 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.