Red Sea NO3 : PO4-X NOPOX - Nitrate & Phosphate Reducer (1000 ml / 33 oz) - Red Sea $33.99 1000 ML - 33 oz Bottle Red Sea NO3: PO4-X is a unique complex of carbons that are used by nutrient reducing bacteria. Each carbon in the complex is utilized by different strains of microorganisms while ensuring the specific...