🌊 Dive into a world of vibrant aquatic life! Designed for sustainable health of fish and invertebrates in low-GH environments. Achieve optimal water conditions with a pH below 7 for your delicate species. Harness the power of natural volcanic ash for thriving aquatic life. Encourage robust root development for lush aquatic plants. Elevate your shrimp biotope with our premium volcanic ash substrate. 1mm particle size Promotes plant growth Acidifies water Brightwell Aquatics FlorinVolcanit Rio Escuro-XF is a 5-pound extra fine black volcanic ash substrate specifically designed for freshwater shrimp and aquatic plants. With a 1mm particle size, it naturally lowers water hardness and acidity, creating an ideal environment for both fish and motile invertebrates. This substrate not only supports strong root systems but also enhances nutrient uptake, ensuring long-term health and vitality in your aquarium.