Patented mineral formula that locks P and rebalances nutrients
SeDox Max is a patented, mineral-based solution designed to restore ecological balance in lakes and ponds. In a low-dosage application, it binds excess phosphorus, supports dissolved oxygen, and introduces inorganic carbon to help rebalance the C:N:P ratio.

Fast Facts
- Binds phosphorus in the water column and P released from sediments.
- High capacity with reduced dosage versus prior/other solutions.
- 50 lb bag binds ~1.5 lb of phosphate (capacity guide).
- Designed for eutrophic to hypereutrophic waters; improves stability & biodiversity potential.
APVMA Status – Analysed as Exempt
The OASE Water Technology range (including SeDox Max, SchlixX, SchlixX Plus, OptiLake, ClearLake and SeDox Speed) has been assessed against the Agricultural and Veterinary Chemicals Code Act 1994 and is analysed as APVMA exempt for its intended use as a non-biocidal water quality enhancer.
Products are not marketed as biocides or pesticides and act by improving water quality parameters and supporting natural biological processes rather than killing organisms.
Permanent mineral binding plus oxygen support
SeDox Max’s combined mode of action converts orthophosphate into stable minerals (apatite pathways), removing it from biological availability. The formulation also supports dissolved oxygen and helps stabilise pH—improving conditions for beneficial microbes and reducing internal loading.
Where it fits
- When **reactive phosphorus** and internal loading drive blooms.
- Complements SchlixX Plus where organic sludge/muck is also a problem.
- Suitable for standing waters, closed circuits, and internal lake restoration.
Application guidance
Apply evenly across the surface or as a **suspension/slurry** distributed across the whole area (product does not dissolve). Follow label guidance for rates based on measured P.
| Parameter | Guide | Notes |
|---|---|---|
| Binding capacity | ~1.5 lb PO₄ per 50 lb bag | Capacity reference for planning. Confirm with monitoring. |
| When to use | Eutrophic/hypereutrophic waters; after algae control; winter/spring | Stabilises nutrient balance; supports long-term clarity. |
Dose plans vary with orthophosphate, inflows, residence time, and sediment chemistry. Ask us for a site-specific plan.
Frequently Asked Questions
How much phosphorus does a bag bind?
Does SeDox Max work on internal loading?
How is it applied?
Ready to lock phosphorus and stabilise water quality?
We’ll design a site-specific dosing plan and monitoring schedule.

