JBL SilicatEx Rapid
Prevents diatoms by removing silicate

  • Filter material for the removal of silicic acid (silicate) in fresh and marine water to prevent diatoms
  • Rinse, fill in filter bag (enclosed) and place in filter. Rinse after one to two weeks
  • Diatoms can form brown unsightly deposits on gravel, decoration material and plants
  • Silicate content can be checked with silicate test. Result: values below 0.4 mg/l silicate prevent diatoms
  • Guaranteed efficiency: binds up to 30,000 mg silicate (SiO2)/ kg. Including net bag and sealing clip
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basic price 50,33 EUR / kg
Recommended retail price incl. VAT
Available from your specialist dealer.
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Product information

This is how to have a beautiful aquarium without troublesome algae

Diatoms form brownish coatings on plants, aquarium base and decorations. They occur when your water contains more than 0.4 mg/l silicic acid/silicates (SiO2). The silicic acid mainly comes from your tap water. It serves to develop the skeletal structure of the diatoms. To combat the algae, just remove the silicic acid from the water and they will die or have no opportunity to form.

Diatoms are neither toxic nor harmful. They even form a part of the nutritional basis for grazing cichlids in Lake Malawi and Lake Tanganyika. But as algae form brownish coatings which are regarded as unattractive we tend to remove them from our aquariums.

Distinguishing between diatoms and slimy algae
Both algal groups can look very similar. But when you take them between your fingers you can feel the difference: slimy algae feel greasy-slimy even after rubbing them longer, whereas diatoms feel rough.

Special filtering
SilikatEx removes silicate from fresh and marine water aquariums. It removes from the main nutrients the unwanted diatom algae (brown coatings), which often appear after freshwater has been added. SilikatEx Rapid also removes phosphate etc. and thus curbs the growth of other algae. The filter material creates biotope-like living conditions.


JBL SilicatEx Rapid

Art. no.:
EAN Code:
400 g
200-400 l
Volume packaging:
1.050 l
Gross weight:
440.000 g
Net weight:
400 g
Weight factor:
43/225/125 mm
Does Silikat Ex raise the general hardness ?

When the silicate values are high, the measurable general hardness may in fact rise after Silikat Ex is used. This can be explained by the “masking” of the hardness-producing substances, calcium and magnesium, as a result of the silicates in the water.

Does JBL SilikatEx have any effect on the carbonate hardness and/or the pH value?

Yes, especially in cases of overdoses JBL SilikatEx can reduce the carbonate hardness and thus indirectly the pH value.

This is especially relevant for aquariums with soft starting water and with marine aquariums. In such cases we recommend a parallel control of the carbonate hardness and if necessary also the addition of JBL AquaDur or JBL AquaDur Malawi/Tanganjika (both for freshwater).

How much silicate can be bound with one pack (400g) SilikatEx Rapid?

One pack (400g) can bind approx. 12,000 mg silicate.

Can I use JBL SilicatEX in the drinking water of the bathing tubs, too? Does this material release any substances into the water?? Could these be harmful to my lizards?

The raw ingredient in SilicatEx is normally used to remove arsenic from drinking water on a large scale in waterworks. Therefore, it can be assumed that there is no risk in this respect.

How long does JBL SilicatEx keep for?

JBL SilicatEx has an unlimited storage life in dry conditions.

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Laboratories and calculators

Water Analysis Online Laboratory

Enter your water parameters and get an in-depth analysis of your values in a matter of seconds. You enter your water values – and we analyse! Here you have the opportunity to enter the measured water values directly into the JBL Online Laboratory. This will analyse your values and explain and submit corrective measures.
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safety instructions

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