Check the listing for details. NeoNitro (4 L) - Brightwell. Condition: New. Listed at 44.99 USD. Balanced Nitrogen Source for Nitrogen-Limited, Low-Nutrient Reef Aquaria Overview 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 the use of chemical filtration media and 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, only. May be used with MICROBACTER7 (selected microbes and enzymes), REEF BIOFUEL and/or KATALYST (organic carbon source), and NEOPHOS (phosphorus source) to achieve desired nutrient content in reef aquaria for improved health and coloration of inhabitants. Listing and template services provided by inkFrog