Blanketweed Klear - Blanket Weed Treatment

  • Harmless To All Fish, Pets & Wildlife
  • Kills Surface Floating Blanket Weed
  • Works Within 24 Hours
Free UK Delivery
Immediate Blanket Weed Treatment for Ponds!There’s no easy way to say this but, blanket weed is the devil reincarnated and unfortunately, he has chosen your pond as his next victim. It grows at an extremely f...
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Immediate Blanket Weed Treatment for Ponds!

There’s no easy way to say this but, blanket weed is the devil reincarnated and unfortunately, he has chosen your pond as his next victim. It grows at an extremely fast rate, requires very little to thrive and before you know it, the surface of your pond has been completely taken over by the thick stringy weed. Not only can it be very hard to get rid of, but it can also pose serious dangers to your fish, aquatic plants and wildlife, which is why it is very important to choose a blanket weed treatment that works quickly and safely.

Luckily for you, Blanketweed Klear is blanket weeds kryptonite. Using complex, scientific sorcery and an innovative element called oxygen, Blanketweed Klear begins to work instantly to kill floating blanket weed and will have completely killed it within 24 hours. Blanketweed Klear kills algae that is floating on top of the water. For submerged algae that is attached to plants, pumps or the side of the pond, you need Algae Klear Xtra. This algae is commonly known as string algae and is regularly confused with blanket weed.

For more information about blanket weed and to determine which algae you have, read our Ultimate Guide To Blanket Weed!

As well as being extremely effective against floating blanket weed, it also boasts other impressive features that make this an obvious choice in the fight against the green devil.

Temperatures in the UK can fluctuate massively, we all know this as we love to talk about it. However, this makes treating a pond quite difficult as some products only work down to certain temperatures and once they reach this temperature, they stop working, allowing blanket weed to strengthen again. We have incorporated innovative bacteria into our blanket weed treatment that allow it to work down to 4°C which is perfect as blanket weed stops growing below 8°C, we’ve got you covered all year!

As if being able to kill blanket weed all year wasn’t good enough, you can also rest assured that your fish, plants and wildlife will be completely safe when using Blanketweed Klear as we are using the innovative element we recently mentioned, oxygen.

How to Prevent Blanket Weed in Ponds?

You’ve gone to all that effort to kill the blanket weed in your pond, only for it to come back two weeks later. What a waste of time and money! That’s why we include bacterial follow up tablets in with our blanket weed treatment to prevent any new blanket weed growth. By suppressing the blanket weeds food source with beneficial bacteria, you produce a biologically balanced ecosystem in your pond that will create a natural defence against blanket weed and other algae.

Learn more about blanket weed to help you in the fight against evil! From what it looks like, to how it can be dangerous to your fish.

The Serious Bits

Before using Blanketweed Klear we strongly recommend checking your water parameters and ensuring your pH is below 8.5 and KH is around 5. You can do this either by using a test kit or by applying Pond Equaliser to instantly stabilise the water parameters.

If the powder comes into direct contact with aquatic plants such as lilies, it may cause some temporary discolouration on foliage.

For ongoing maintenance and to protect your pond from future algae and blanket weed we recommend using Pond Klear or Pond Klear Xtra to keep bacterial levels topped up and the natural defence system strong.

  • Use 30-50g of powder per 1,000 litres of water (the provided scoop is 10g)
  • Scatter directly onto blanket weed
  • Once the blanket weed has turned brown, scoop it out and add it to your compost heap or garden waste bin
  • After 24 hours, add 1 tablet to a bucket of pond water and leave to dissolve for 1 hour
  • Once dissolved, distribute the bucket of water evenly in the pond


Before applying, check water values. Only use product if pH value is below 8.5 and the carbonate hardness (KH) is above 5dH (0.890 mmol/l CaC03.
We strongly recommend the use of Envii Pond Equaliser to stabilize the values prior to using this product.

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