NeoNitro - Balanced Nitrogen Supplement, Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enables natural phosphorus uptake to take place in systems with inadequate nitrogen content, lowering phosphate concentration without resorting to polluting the system with organic material to raise the nitrogen content. Recommended for use by advanced reef aquarists maintaining ultra-low nutrient content systems. Ingredients: Purified water, proprietary nitrogen salts.