eco complete planted substrate caribsea <p>ecocompletes secret lies in rich basaltic volcanic soil which contains iron, calcium, magnesium, potassium, sulfur plus over 25 other elements to nourish your aquatic plants. now contains floraspore - these symbionts activate the root-substrate interface to facilitate the uptake of minerals which make for a healthier root and healthier plant. iron rich ecocomplete eliminates the need for laterite. no artificial dyes, paints, or chemical coatings. eco-complete 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.</p>