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£24.98 each

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EcoSure Pond Clear by Envii Twin Pack

SAVE £4.99!

  • Catalogue Code 1090-4188
  • Pack Contents: 2 packs of 4 tablets

Powder treatment to make ponds clear again in 3-4 weeks. Ideal for cold water.

Watch the water of your pond go from green to clear in weeks and SAVE money! This non-chemical powder treatment treats 40000 litre ponds (around 20-30 square metres).

  • Works in ponds with temperature of just 4°C
  • Safe for fish, wildlife, pets and children
  • Reduces blanketweed, nitrates and sludge build-up
  • Ideal for fish ponds, koi ponds, ornamental ponds and self-contained water features
  • Easy to use - no mess, no measuring, no nasty chemical

Eco-Sure Pond Clear by Envii helps suppress algae growth by removing the nutrients algae requires to flourish.

Why your pond goes green

Floating green scum, blanketweed and silkweed are the most common types of green algae. Green algae needs nitrates to grow; if you have a lot of green algae you have a lot of nitrates in your water.

What causes nitrates in your pond 

Nitrates come about from several factors;

When ponds are in full sun and have little shade

When there are too many nutrients from fertiliser run-off, overfeeding of fish, falling leaves and animal waste

What does EcoSure Pond Clear by Envii do to nitrates?

The bacteria in EcoSure Pond Clear by Envii digests and absorbs organic matter from the surface, the sides and the bottom of your pond.

With no organic matter, nothing converts to nitrates and with no nitrates all green algae dies.

Here's what you do

Place the powder in 5 litres of pondwater. The higher the temperature the better, so try to do this on a sunny day when the sun has warmed up the water.

Leave for 2-4 hours and give the 5 litre solution a mix. Pour into the pond slowly around the whole surface of the pond. 

How long can you expect to see results

Sometimes it takes up to a few weeks to see results, sometimes it takes longer, depending on water temperature, fish population and weather, and how green your pond is to start with.

For quicker results

  • Don't feed fish during the summer
  • Ensure pondwater is 4°C or above
  • Provide shade to the pond surface

Every pond is unique in its composition of nutrients and nitrates which means the time it takes to clear your pond of green algae, blanketweed and scum varies. 

After 4-6 weeks, repeat the process above if the green water persists. To maintain a clear pond, apply a further 5g three months later or the following spring.

EcoSure Pond Clear by Envii's long shelf life means it can be stored in a cool well-aired place for up to twelve months later.

More tips for on-going good pond health

Introducing lots of pond plants which produce oxygen.

Keep levels of tap water, often high in fluoride and calcium, to a minimum when topping your pond up by using stored rainwater when you can. 

Please note: The optimal water temperature for EcoSure Pond Clear by Envii to work is over 4°C. In colder temperatures it will continue to work although it may take longer for visible effect.

For tips on How to Use, please CLICK HERE to download our PDF.


First try didn't work waiting for it to warm up


i would like to speak to someone about this product as i have not been able to see my fish since i started treating the pond,all it seems to do is break the algi up and leaves the small particles floating throughout the water so it is green water, no good giving you a photo because all you can see is green water, we had allways used the other treatment that you sold and that worked so i do not see why you are trying this rubbish on the unsuspecting public why change something that works is it just sop you can charge more ???, i would like this sorting out and my money back as my summer in the garden has been spoiled,colin baxter



Our products are all grown with the utmost care and to high standards of quality. We regularly check our nursery stock to determine exactly when they will be at the optimum time for despatch. 

We despatch our fresh, nursery-grown live plants (including vegetables, trees and flowers) when they are at a stage of growth ready for you, the customer, to plant on at home. 

The delivery period shown on your order confirmation indicates when you can expect to receive your order and we will endeavour to despatch your plants in this period within 7-14 days