gardening. landscaping. greendesign.

12 - 15 September 2018 // Nuremberg, Germany

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Fights pond sludge

Fields of application

Silt forms in every pond over time, due to leaves, dead microorganisms, leftover feed and fish excrement. Such deposits consume vital oxygen and they begin to rot, causing the water to become cloudy and smell foul. Also,
phosphates and nitrogen are emitted from the mass, which can cause vigorous algae growth. With SiltEx you can easily rid your garden pond of sludge and sediment!


  • Doubly effective with clear water bacteria and active oxygen
  • Greatly reduces organic sludge deposits and prevents new deposits
  • Combats decay and formation of hazardous gas
  • Binds phosphorous and prevents algae bloom
  • Optimum for biotopes
Component A, purely mineral: Decomposition of organic pond silt
Our patented combination of minerals actively oxidizes and decomposes the sediment layer. SiltEx bonds heavy metals and other substances hazardous to fish, such as phosphate, the main nutrient for algae. The result: a noticeable reduction in silt and effective prevention of algae flowering. Foul smells are immediately neutralized.

Component B, purely biological: Bacteria ensure clear water
The powerful microorganisms immediately begin to decompose sludge, dead algae, plant particles, leaves and fish toxins. The result: clear, fresh pond water.

SiltEx breaks down approx. 80 % of organic deposits at the bottom of the pond within a few weeks. This prevents nitrogen accumulation.


Ideal application time

The water temperature should be at least 10 °C for optimal microbiological decomposition.
Do not use SiltEx in water over 25 °C.
Type of application
Mix the two components of SiltEx (A + B) well and sprinkle directly over the pond. Rinse powder residue off of plants. The filters (with the exception of the ground filter) can remain in operation, and animals can remain in the pond.
For 1000 l of pond water:
25 g from the container = “component A” and
5 g from the bag inside of the container, labeled “component B”
The amount applied can be doubled when sludge deposits are abundant. Mix the two components well and sprinkle over the pond.
In some cases (very stubborn deposits, strong current, …) an additional dose may be needed. However, the second dose should not be administered until at least six weeks after the first.

Package sizes
SiltEx is available in the following quantities: 1 kg, 5 kg, 10 kg, 25 kg, 50 kg
Please store in a cool, dry place, protected from frost. Keep out of reach of children!

AlgoClear - the special algae- fighting agent (liquid algcide)

LOGO_AlgoClear – der Spezialwirkstoff gegen Algen (flüssiges Algizid)

AlgoLon® – Combats thread algae (powder biocide)

LOGO_AlgoLon® – gegen Fadenalgen (pulverförmiges Biozid)

OptiLake – The basic pond care product

LOGO_OptiLake – das Grundpflegemittel für den Teich

SeDox – Prevents algae by bonding phosphate

LOGO_SeDox – Algenvorbeugung durch Phosphatbindung

SiltEx is assigned to following product groups:

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