Pelletized Bioreactive Filtration Media for Nitrate and Phosphate Control Overview Bioactive filtration media, providing an ideal colonization substrate and a suitable source of organic carbon to beneficial microbes responsible for uptake of nitrate and phosphate. Helps decrease latent organic material, and hence nitrate and phosphate concentrations, in aquaria, greatly simplifying and improving nutrient control relative to methods based solely upon using vodka or other alcohol/sugar solutions as organic carbon sources. May be used with MicroBacter7 and/or as part of a low-nutrient approach to aquarium husbandry. Improves water clarity through remineralization of latent dissolved organic compounds present in system. Safe for use in all freshwater and marine aquaria, including planted and reef systems.