Diatomix IV 1 Litre

Diatomix IV – Advanced Silica-Enhanced Water Health Solution for Low-Silica Systems

Diatomix IV is specifically formulated for waterbodies where silica levels are low, where the water is regularly recirculated or where rain water is used for topping up the pond.  Silica is essential in the water for good diatom health, to reduce persistent and unwanted algae blooms. Diatomix IV supercharges diatom growth — the natural nutrient cyclers — so nitrogen and phosphorus are locked up naturally, improving water clarity, dissolved oxygen and ecosystem balance. Ideal for larger ponds, dams, reservoirs and irrigation storages.

Benefits at a glance:
  • Corrects silica deficiency to support beneficial diatom growth
  • Reduces nuisance algae and improves clarity
  • Enhances oxygen levels and stabilises aquatic ecosystems
  • Safe for fish, livestock, wildlife and pets
Why Silica Matters

Many waterbodies suffer from chronic algae issues not because of excess nutrients alone, but because they lack bioavailable silica — the key nutrient diatoms require to thrive. Without silica, diatoms can’t outcompete harmful algae, even when nitrogen and phosphorus are high.

Diatomix IV delivers silica and essential micronutrients where they’re most needed, tipping the balance back to natural nutrient cycling.

How Diatomix IV Works
  • Diatoms are microscopic algae that naturally absorb nitrogen and phosphorus.
  • They require silica to build their cell walls — other algae do not.
  • Diatomix IV supplies bioavailable silica and micronutrients so diatoms flourish.
  • As they grow, they remove nutrient fuel from the water that would otherwise feed nuisance algae.
How to Use

For best results:

  • Apply Diatomix IV according to water volume and condition.
  • Typical initial dosing is higher than standard formulations due to silica limitations and larger body volumes.
  • Spread applications across the waterbody for even coverage.
  • Contact us for exact dosing guidance or use our dosing calculator.
Available in 1 Litre and 5 Litre bottles and is best for larger ponds, dams or reservoirs where there is low silica and the dose rate is higher.

$282.00 inc. GST

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Diatomix IV – Integrated Silica and Micronutrient Algae Treatment

Diatomix IV is an ecosystem-based algae treatment designed to support beneficial biological processes associated with nutrient cycling and water-quality improvement.

Rather than acting as a conventional algaecide, Diatomix IV provides reactive silica together with selected micronutrients to support diatom-associated and other beneficial biological processes. The objective is to improve biological resource utilisation and nutrient cycling, helping create conditions that are less favourable to persistent dominance by nuisance algae and cyanobacteria.

An Integrated Formulation

Diatomix IV combines the micronutrient components of Diatomix with a source of reactive silica in a single formulation.

Silica is an essential resource for diatoms and can become limiting in aquatic systems where nitrogen and phosphorus remain readily available. Providing reactive silica together with selected micronutrients helps support the biological processes associated with diatom growth and nutrient utilisation.

The integrated formulation makes Diatomix IV particularly useful where both micronutrient availability and reactive silica availability need to be addressed as part of the treatment programme.

Where is Diatomix IV 1 Litre Used?

The 1 Litre format is a convenient option for treating ponds, dams and other managed waterbodies where Diatomix IV’s combined silica and micronutrient formulation is appropriate.

Potential applications include:

  • garden and ornamental ponds
  • larger ponds and small dams
  • farm dams
  • irrigation and amenity waterbodies
  • other managed freshwater systems

Treatment requirements vary according to waterbody size, water chemistry, nutrient availability and the nature of the algae or water-quality problem. The appropriate dose and treatment frequency should therefore be determined for the individual waterbody.

Choosing the Right Size

Diatomix IV is also available in a 5 Litre size for waterbodies requiring greater treatment quantities or for ongoing treatment programmes.

The 1 Litre and 5 Litre products use the same Diatomix IV formulation; the appropriate size depends primarily on the amount required for the waterbody and treatment programme.

For larger or more complex water-quality problems, contact us to discuss your waterbody and the most appropriate treatment approach.

Weight1 kg
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