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Red Sea NO3:PO4-X Nitrat & Phosphat reducer 500 ml (R22203)

Product no.: 112177

43,80 EUR per liter

Red Sea NO3:PO4-X Nitrat & Phosphat reducer 500 ml (R22203)

Red Sea NO3:PO4-X, also known as Nopox, is a highly effective biological reducer for nitrate and phosphate, specially developed for all reef and fish aquariums. It enables a controllable and safe reduction of nutrient levels, supports healthy growth and intense coloration of corals, and is reef-safe.

Key Benefits:

  • Controlled nitrate and phosphate reduction: Set your desired levels and keep them stable.
  • Promotes coral growth and coloration: Supports the natural vitality and beauty of your corals.
  • Reef-safe and reliable: No unwanted side effects.
  • Easy to use and cost-effective: Available in virtually every package size.

Red Sea NO3:

PO4-X contains a unique complex of various carbon compounds and organically bound elements that supports the biological reduction of nitrate and phosphate by natural bacteria in your aquarium in a controlled manner.

Implementation Guide

Aquarium TypeRecommended
level of
Average daily usage
of NO3:PO4-X (25gal)
NO3PO4
Mixed Reef1-2ppm0.08-0.12ppm2ml
SPS Frag1-2ppm0.08-0.12ppm2ml
SPS Dominant0.25-0.5ppm0.01-0.02ppm1-2ml
Ultra Low
nutrient SPS
0ppm0ppm 1-2ml
Marine Fish<10<13ml

Hint : Make changes in the operating scheme of your aquarium always slow and careful.

Better to dose too little than too much and too fast.

Especially with older, nutrient-rich tanks a start with only 10% of the stated dosage amount is a good recommendation


24,99 EUR Now only 21,90 EURyou save 12 % /3,09 EUR19 % VAT incl. excl. Shipping costs

Shipping time:usually in stock


Ab 6.95 € / Monat

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