Prevents nuisance algae and enables control of zooxanthellae
for optimum coral growth and coloration

NO3 | PO4



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 Carbon:Nitrogen:Phosphorus ratio required for each stage.


The Red Sea NO3: PO4-X complex includes other organic-bonded elements that are important stimulators in each stage of the reduction process. These metal and non-metals elements ensure steady bacterial propagation, complete nitrate reduction to nitrogen gas as well as the absorption and utilization of phosphate by the bacteria.

The fine control of the nitrate and phosphate levels provided by monitored dosing of  NO3: PO4-X guarantees the gradual changes and accurate maintenance of the nutrient levels. This prevents the destruction of the Zooxanthellae population that can cause UV shock and starvation of the corals.


Unlike some other low-nutrient regimes, correct use of NO3: PO-X will maintain all of the micro-fauna that are beneficial for the reef.


NO3: PO4-X is also recommended as a complete carbon source for use with carbon-based de-nitrators.


Red Sea NO3: PO4-X  is available in 500ml and 1000ml bottles and includes a measuring cup for easy dosing.


Instructions for converting to NO3:PO4-X from PO4 and NO3 >>



NO3: PO4-X Concentration:

2ml/100 liters (25gal)/day


NO3: PO4-X Package size/volume:

500 ml (16.9 fl. Oz.) 1000 ml (33.8 fl. Oz.)