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How much treatment do you need?

Enter the pond volume below – or use the calculator – then click on the product you are using for an accurate calculation of how much, and how often, you need to use your Blagdon pond treatment.

Pond volume

Enter the volume in litres if you know it:


Don’t know the volume? We can help you calculate it.

Select your pond shape, enter the measurements below (in centimetres), the volume will appear in the ‘Pond volume’ box. Finally, select the product you are using:

Choose your product

  • All in One Fish Treatment

  • Anti Fungus and Bacteria

  • Anti Parasite

  • Anti Ulcer

  • Barley Straw Extract

  • Barley Straw Extract

  • Clean Pond Pods

  • Clear Pond

  • Duckweed Buster

  • Extra Strength Anti-Fungus and Bacteria

  • Extra Strength Anti-Parasite

  • Feature Algae Control

  • Feature Clear

  • Flora-Boost

  • Fresh Start

  • Green Away

  • Pond Balance

  • Pond Guardian Tonic Salt

  • Pond Guardian Tonic Salt

  • Pond Guardian Tonic Salt

  • Stress Away

  • Wildlife Barley Straw Bugs

  • Wildlife Bio-Activator

  • Wildlife Bioactive Sludge Control

  • Wildlife Pond Tap Safe

This is what you need

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