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PondXpert Anti-Duckweed (1,000ml)

Manufacturer: PondXpert
pondxpert anti-duckweed (1,000ml)

Average Rating

Feefo Star Rating(2.5/5)
9customer reviews
RRP: £39.99
In Stock
Want this for Thursday August 11th? Order in the next


01642 370888

Product Description

Probably the most effective treatment of pond duckweed issues.

This treatment tackles duckweed by attacking its roots and leaves. The manufacturer claims that this is the only effective way to treat this weed and that this is the only product which guarantees this action. There are several species of 'duckweed' (lemnaceae) which quickly spread and can cause an unsightly covering on a pond. This product deals effectively with all known species of this plant safely and effectively.


  • 1,000ml treats 22,750 litres of pond water (5,000 gallons)

  • Extra concentrated formulae

  • Safe for all pond fish and aquatic life.

FeeFo Feedback

PondXpert Anti Duckweed 1000ml reviews

Feedback for PondXpert Anti Duckweed 1000ml has been compiled from 9 customer reviews

Date Product Score Customer Comment

PondXpert Anti-Duckweed (1000ml)

  • Customer also bought: .... :
  • Anglo Aquatic 1L Yellow ''Odorata Sulphurea'' Nymphaea Lily (PLEASE ALLOW 2-9 WORKING DAYS FOR DELIVERY)

Used two 1 ltr bottles two weeks apart and now not a hint of duckweed. Long may it last

PondXpert Anti-Duckweed (1000ml)

  • Customer also bought: .... :
  • PondXpert SolarShower 300 Pump (with Battery & LED)

Didnít work at all complete waste of money

PondXpert Anti-Duckweed (1000ml)

  • Customer also bought: .... :
  • PondXpert Barley Straw Bales (3 for 2)
  • PondXpert Pond Flake (800g/4 Litre)

Works, very welll!!indeed

PondXpert Anti-Duckweed (1000ml)

  • Customer also bought: .... :
  • PondXpert Anti-Chlorine (1000ml)
  • PondXpert 4mm Black Sinking Air Line (25m Length)

One treatment seems to be reducing duckweed. Have enough left for a second treatment. Probably will need it.

PondXpert Anti-Duckweed (1000ml)


The product is no good at all. It has made no difference to the duckweed

On 06-Sep-2021 the supplier responded:
Good Morning

Thank you for your feedback on this product.

I am sorry to hear that the treatment has not worked; unfortunately, Duckweed is difficult to control and to treat. Normally treatments do work, but they often need as much Duckweed to be removed as possible prior to treatment. It is also worth looking into other methods which may help to control the Duckweed. Please see our blog post below which may help:

If you have any queries, please email me directly on

Best wishes

PondXpert Anti-Duckweed (1000ml)


The Duck weed killer does not work, I had enough for 2 doses, have applied as per the instructions, NOT A BIT OF DIFFERENCE !!!!!.
Total waste of money. Dont bother buying this!!!! Will give it another week then I will contact Pondkeeper for a refund.

On 19-Aug-2021 the supplier responded:
Good Morning

Thank you for your feedback; though I am sorry to hear that this treatment has not worked.

Duckweed is often found in ponds that have a lot of nutrients; particular Ammonia, Nitrites and Nitrates. It can be difficult to treat Duckweed because of how quickly it grows and develops in a pond. There are several ways in which Duckweed can be treated; please see our blog post below for hints and tips on how to prevent and treat Duckweed.

If you need any assistance on how to remove the Duckweed, please contact me directly on

Best wishes

On 19-Aug-2021 the customer added:
A typical excuse blaming other issues with the pond and not admitting that the product is useless. If many issues can affect the outcome, dont sell a produce that will only work within a small rage of conditions.
I have bought many items from Pondkeeper over the years ranging from full large liners, expensive filters and pumps, uv clarifiers, spending hundreds of pounds. When I purchase something that does not work I thought that I would get better treatment being a repeat customer.
Oh well.

See this exchange on Feefo
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