Algae Klear Xtra - Fast Acting Pond Algae Killer

  • Harmless To All Fish, Pets & Wildlife
  • Integral Light Filter Inhibits New Algal Growth
  • Kills Submerged Algae Fast
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Get Rid of Algae in Ponds Quickly!Bacterial pond treatments such as Pond Klear are great! They offer a natural alte...
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Get Rid of Algae in Ponds Quickly!

Bacterial pond treatments such as Pond Klear are great! They offer a natural alternative to eliminate algae over conventional pond algae killers, whilst being kind to the environment and safe for your ponds inhabitants. However, they take time to work and let’s be honest, who has time anymore?

This is where Algae Klear Xtra comes in to play. Unlike a bacterial treatment, Algae Klear Xtra has one sole purpose and one added benefit (who doesn’t love an added extra!). Its primary focus is to target pond algae directly and kill it for good, whilst the additional benefit of a light filter helps prevent any new algal growth from forming. This combination is not only extremely effective at delaing with algae but also brilliant at improving oxygen levels in ponds which are crucial for fish health.

Using a blend of elements and mind-boggling chemistry, this pond algae killer can rid your pond of the unsightly green stuff within a few days, though we do like to err on the side of caution and say that you will usually see results within two weeks. Whilst we appreciate this isn’t lightning fast, it’s a hell of a lot quicker than any bacterial treatments, which can take up to 8 weeks to fully clear your pond.

Algae Klear Xtra is most effective on algae that sits below the surface of the water, either attaching itself to the pond walls, pumps or pond plants. This algae is known as string, or hair algae and is often confused with blanket weed and whilst it comes from the same algae family, it is not blanket weed and needs to be treated differently. To learn more about the differences between the algaes, read our Ultimate Guide To Blanket Weed!

How to Prevent Algae Growth in Ponds?

Algae Klear Xtra can be used to solve current algae problems, or as an algae preventative treatment due to its bright red light filter, which despite its colour, will not dye your pond water and make it look like a fish massacre has occurred.

For ongoing maintenance, we do recommend using a bacterial treatment such as Pond Klear or Pond Klear Xtra rather than a pond algae killer. They are better equipped to restore the biological balance in your pond and create a natural defence system against algae and fish disease.

How to Get Rid of Floating Algae in Ponds?

Floating algae that sits on the surface of the water like a cushion or a pillow is commonly known as blanket weed. Algae Klear Xtra is ineffective against this and will require something more specific such as Blanketweed Klear, or as we like to call it Blanketweeds Kryptonite.

The Serious Bits

It is always important when using any pond treatment to check your water parameters first. You can do this either with a test kit or by simply adding Pond Equaliser to stabilise the important water parameters. Ideally, your pH should be around 8 and your KH around 5 to get the most out of any product.

Like all pond algae killer products, Algae Klear Xtra can be dangerous to fish and wildlife when it is not used as advised. However, when instructions and dosage rates are followed as advised, this product is safe for fish, plants and wildlife.

500ml treats 10,000 litres

1 Litre treats 20,000 litres

5 Litre treats 100,000 litres

  • Ensure pH of water is BELOW 8.6 (use Envii Pond Equaliser if above 8.6 before treating with Algae Klear)
  • Dilute at least 20 times dose level with pond water – i.e. 10ml mixed with 200ml of pond water – do not add to the pond undiluted.
  • Distribute evenly into the pond to using a watering can
  • When used correctly there are NO side effects on fish, plants & amphibians.


Use early in the morning when algae is at it's weakest.

500ml treats 10,000 litres/2,200 gallons
1L treats 20,000 litres/4,400 gallons
5L treats 100,000 litres/22,200 gallons

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