Grow healthier, more vibrant plant life in your freshwater aquarium with Activ-Flora Planted Aquarium Substrate. This Bio-Activ, nutrient-enriched gravel contains a wide variety of essential minerals to help your aquatic plants thrive and achieve optimum growth more quickly. It’s also rich in iron, so you won’t need to add laterite, and it contains no artificial dyes or additives. Thanks to its vast reserve of micronutrients that are slow-released over time, Activ-Flora substrate is indefinitely self-sustaining. As an added benefit, live heterotrophic bacteria provides instant cycling to help remove harmful nitrogenous waste immediately without altering your pH.