Fluval
Fluval 12696 Natural Mineral Rich Volcanic Soil Bio Stratum For Planted Tanks 4.4 Pounds Aquarium Substrate For Healthy Plant Growth
Fluval 12696 Natural Mineral Rich Volcanic Soil Bio Stratum For Planted Tanks 4.4 Pounds Aquarium Substrate For Healthy Plant Growth
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Product features
Product features
Materials and care
Materials and care
[Generic] 100% natural volcanic soil, proprietary mineral complex, dormant nitrifying bacteria.
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- Directly Sourced From USA
- Premium Quality & Authenticity
- 7 Day Easy Return

Product Description
Create a thriving aquatic environment with Fluval Bio Stratum, a premium, mineral-rich volcanic soil specifically formulated for planted freshwater tanks. Harvested from the foothills of Mount Aso in Japan, this high-quality substrate provides the essential nutrients and trace elements necessary to foster vigorous plant growth and vibrant foliage coloration. The unique, porous structure of these granules prevents soil compaction, ensuring that delicate and fine root systems can easily spread and anchor for a healthy, long-lasting aquascape. Beyond its physical properties, this substrate is infused with bioactive beneficial bacteria. These dormant nitrifying bacteria activate upon contact with water, helping to rapidly reduce ammonia levels and kick-start the nitrogen cycle in new aquariums. By naturally supporting a neutral to slightly acidic pH, it creates an ideal water environment for both aquatic plants and sensitive shrimp species. Whether you are maintaining a new aquarium or revitalizing an established planted tank, this volcanic substrate acts as an effective biological filtration medium, promoting superior water quality and stable conditions for your aquatic life to flourish.
FAQ
Q1. How to layer it with sand or gravel in your aquarium setup?
Ans: For the best results, use Fluval Bio Stratum as the primary bottom layer in your planted areas. You can cap it with a thin layer of sand or fine gravel if desired for aesthetics, but ensure the substrate remains deep enough to support the root systems of your plants.
Q2. Compatible plant species that thrive best in this type of substrate?
Ans: This substrate is excellent for a wide variety of aquarium plants, including carpeting plants like Hemianthus, various Cryptocoryne species, and delicate stem plants that require nutrient-rich soil for optimal health.
Q3. Details on water parameter testing (like KH and pH levels) while using this soil?
Ans: Fluval Bio Stratum is designed to naturally buffer water to a slightly acidic or neutral pH. It is recommended to test your KH and pH regularly during the first few weeks to ensure they remain within the preferred range for your specific aquatic inhabitants.
Q4. Is this product authentic and imported from the USA?
Ans: Yes, all products sold by Rudra Retails, including this Fluval substrate, are 100% authentic and sourced directly from the USA to ensure the highest quality for your aquarium.
Q5. Does this soil affect the nitrogen cycle?
Ans: Yes, the bioactive bacteria infused within the granules help establish and maintain the nitrogen cycle, which is essential for detoxifying ammonia and keeping your aquarium environment healthy.