Red Sea NO3:PO4-X Biological Nitrate & Phosphate Reducer 16.9-oz
Red Sea NO3:PO4-X Biological Nitrate & Phosphate Reducer 16.9-oz








Red Sea NO3:PO4-X Biological Nitrate & Phosphate Reducer 16.9-oz
Red Sea NO3:PO4-X Biological Nitrate & Phosphate Reducer 16.9-oz
Key Benefits
- Lowers and controls NO3 & PO4
- Cost-effective solution
- Safe for reef use when dosed right
- Ensures controlled nutrient reduction
- Promotes clear, clean water

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Description
Description
Control excess nutrients and prevent algae outbreaks with Red Sea’s NO3 and PO4-X Nitrate & Phosphate Reducer. Red Sea Products advanced solution is a carefully balanced blend of carbon compounds, each supporting different strains of beneficial microorganisms, all in a reef-safe formula. By encouraging the growth of natural nutrient-reducing bacteria already present in the aquarium, it provides a highly effective and sustainable way to lower nitrates and phosphates.
As a core component of Red Sea’s Algae Management Program, NO3 and PO4-X offers a controlled biological reduction process suitable for all reef and marine aquariums. Regular aquarium water treatments testing combined with proper dosing allows hobbyists to manage nutrients precisely without causing undesirable side effects to corals, fish, or invertebrates. Unlike chemical removers, this method supports a natural balance within the tank, ensuring long-term stability and healthier conditions for marine life.
Key benefits include: consistent reduction and maintenance of nitrate (NO3) and phosphate (PO4) levels, cost-effectiveness, complete reef safety when dosed correctly, and a controlled approach to nutrient management. With NO3 and PO4-X, aquarists can enjoy clear water, vibrant corals, and a cleaner, healthier reef environment.
Key Benefits
- Reduces and maintains NO3 and PO4
- Cost Effective
- Reef Safe (do not overdose)
- Nitrate and Phosphate reduction in a controlled setting
- Aquarists can enjoy clear water
Attributes OR Specification
Attributes OR Specification
Biological reduction of nitrate (NO3) and phosphate (PO4) in marine and reef aquariums
Controlled and gradual nitrate and phosphate reduction to prevent nuisance algae growth
Reef and marine fish systems
safety and precautions
safety and precautions
- Avoid overdosing as it may lead to excessive bacterial growth or cyanobacteria blooms.
- Safe for all aquarium inhabitants including corals, fish, and beneficial microfauna.
- Do not combine with other phosphate removal products.
- Store in a cool, dark place and keep the bottle sealed when not in use.
- In case of accidental large overdose, strong protein skimming should mitigate risks.
- Use continually as part of a nutrient management program, not a one-time treatment.
Direction
Direction
- Start with half the recommended dose to assess aquarium response.
- Dose consistently daily for best results.
- Use high quality nitrate and phosphate test kits to monitor levels regularly.
- Maintain stable dosing through a dosing pump if possible for precision.
- Adjust dosage gradually based on test results to maintain desired nutrient levels.
- Effective protein skimming is critical when using this product to safely remove bacteria byproducts.





