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Pond - Duckweed Control

Duckweed 250ml
Lots of tiny plants hanging in water

Cristalclear

When to use: 

Use with the build-up of nuisance plants such as duckweed.  Cristalclear removes phosphate from the water, the nutrient responsible for the rapid spread of duckweed.  Add to the pond every week for the first 2 weeks and every other week thereafter during the growing season.

Do:

  • Shake well before use.
  • For best results, rake off as much duckweed first.
  • Mix full dose in a clean bucket of pond water, and then pour evenly around the pond.
  • If the water is very badly affected the dose can safely be doubled without risk to fish.
  • Use for a minimum of 6 months to achieve the optimum benefits.

For common frequently asked questions, click here.

From £9.99

Specifications

Available in the following variations:

250ml, 500ml & 1 Litre

Where to Buy?

Simplified map of the United Kingdom.

Dosage

Let us calculate your dosage for you!

To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.

Note: This calculator does not take into account water displacement such as that caused by substrate, ornaments, water features and plants etc. Therefore, please adjust the calculated volume accordingly.

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* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.