Seachem Laboratories Flourite Black Sand Clay Based Plant Substrate, 7 kg

It lies in rich basaltic volcanic soil which contains iron, calcium, magnesium, potassium, sulphur plus over 25 other elements to nourish your aquatic plants. Florasporet symbionts activate the root-substrate interface to facilitate the uptake of minerals which make for a healthier root and healthier plant. Iron rich eco‑completed eliminates the need for laterite. No artificial dyes, paints or chemical coatings. Eco-completed has highly porous spherical grains for optimum diffusion performance and contains live heterotrophic bacteria to rapidly convert fish waste into natural food for your aquatic plants. It establishes a natural biological balance which makes cycling a new aquarium faster and safer.