SeDox Max – Sustainable Solution for Phosphate Binding and Nutrient Balancing in Aquatic Ecosystems

SeDox Max is now available as a highly effective, patented* solution designed to reduce phosphate levels and restore the nutrient and ecological balance in lakes, ponds, and other standing water bodies. 

Why SeDox Max? 

Excessive nutrient input—especially phosphorus (P) and nitrogen (N)—from agriculture, wastewater treatment, and industry is one of the leading causes of eutrophication. The resulting overgrowth of algae, particularly cyanobacteria, can lead to oxygen depletion in deeper layers and a loss of biodiversity. 

SeDox Max targets these issues directly through a multi-stage mechanism of action that delivers both immediate and long-lasting results to stabilize water quality and support a diverse aquatic ecosystem. SeDox Max binds free and sediment-released orthophosphate, enhances oxygen at the sediment layer, and helps restore long-term ecological balance. It’s also ideal for use after an algaecide treatment, acting as a follow-up solution. 

 The Root Cause: How Nutrient Imbalance Disrupts Aquatic Ecosystems 

Human activity has significantly altered the nutrient dynamics of freshwater systems. Excessive inputs of nutrients—particularly phosphorus (P) and nitrogen (N)—are often introduced through: 

• Agricultural runoff: Fertilizers and manure applied to fields can be washed into nearby lakes, rivers, and ponds.
• Municipal wastewater: Treated or untreated effluents still contain high nutrient loads.
• Industrial discharge: Certain manufacturing processes release nutrient-rich wastewater.
• Stormwater runoff: Urban areas contribute additional loads through runoff from roads and surfaces.

These inputs lead to eutrophication, a condition in which waterbodies become overly enriched with nutrients, triggering rapid algal growth—especially of cyanobacteria (blue-green algae). These algae flourish near the surface in the photic zone, where light is abundant. 

When the algae die, they sink to the bottom, where their decomposition by bacteria consumes large amounts of oxygen. This can lead to hypoxic (low oxygen) or even anoxic (no oxygen) conditions, making the environment uninhabitable for many aquatic organisms, including fish, macroinvertebrates, and beneficial microbes. In extreme cases, entire ecosystems can collapse, resulting in a loss of biodiversity and a shift toward more resilient, but less desirable, species. 

Moreover, eutrophication can cause: 

• Harmful algal blooms (HABs), some of which produce toxins
• Turbid water and reduced light penetration
• Disruption of natural food webs and aquatic habitat

One of the most critical factors in preventing these problems is maintaining the proper balance between carbon (C), nitrogen (N), and phosphorus (P) in the water—known as the Redfield ratio. When these nutrients are in balance, these are ideal conditions for aquatic ecosystems being stable, diverse, and self-regulating. 

How SeDox Max Works 

1. Powerful Phosphate Binding 
SeDox Max binds dissolved orthophosphate in the water column and phosphate released from sediments using a purely mineral-based mechanism. The product reacts quickly and remains effective for several months. 1 kg of SeDox Max binds up to 30 g of phosphorus, even at low concentrations. 

2. Nutrient Ratio Optimization 
By adding bioavailable inorganic carbon, SeDox Max helps rebalance the C:N:P ratio in the water, creating favorable conditions that support greater microbial activity and species diversity. 

3. Oxygen Enrichment and Sediment Buffering 
With the addition of electron acceptors (e.g., CaO₂, O₂) and pH buffering, SeDox Max stimulates microbial activity in sediments. This accelerates nitrogen and carbon degradation and thus supporting overall remineralization.  

Key Benefits 

• Significant phosphate reduction to <0.035 mg/L through the formation of stable mineral compounds
• Restores nutrient balance (C:N:P ratio) to promote biodiversity
• Enhances microbial activity, boosting nitrogen and carbon breakdown in sediments
• Fast and long-lasting effect for months
• Lower dosage required, minimizing labor and application costs

Initial Success and Market Reach 
Early applications of SeDox Max in test lakes across North America have shown strong results, with improved water clarity and stable phosphate levels weeks after application. As part of the Oase Lake Therapy line, SeDox Max is now available to lake managers, municipalities, golf courses, fisheries, and private lake owners seeking long-term solutions for phosphorus control. Whether you're managing a 2-hectare lake or a decorative pond, SeDox Max offers a scalable, science-based solution to nutrient pollution. 

Conclusion: SeDox Max – For Clean, Stable, and Biodiverse Waterbodies 

With its patented* multi-mechanism formula, SeDox Max combines effective phosphate removal, nutrient regulation, and oxygen enrichment in a single product. It is a powerful tool for water managers and lake owners aiming to restore and maintain high water quality and ecosystem health. 

Want to learn more or need assistance with your lake? Contact us today.

*patent pending