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If you need pond water treatments that are effective, work all year round and are safe for wildlife and your fish, you’ve come to the right place. At Envii we specialise in unique pond products that treat common problems found in garden ponds. From green pond water, blanket weed and sludge, to chlorine removal and pH buffering. Our products are environmentally friendly and safe, giving you piece of mind that your fish, pets and wildlife are safe when using them. What’s more, our pond water treatments contain a unique patented strain of bacteria that work down to 4°C, giving your pond protection throughout the year.

Showing 1–12 of 16 results

  • Sale

    Algae Klear Xtra

    Fast acting pond algae treatment that targets and kills submerged blanket weed and string algae within 2 weeks. Works at any temperature and prevents the re-growth of algae due to it’s unique UV light filter.


    £19.99 - £99.99 £14.99 - £99.99
  • Pond Equaliser

    Instantly stabilises the important water parameters in your pond and buffers the pH, KH and GH for up to 6 months to ensure your fish remain safe. Also remove harmful, toxic metals and ammonia from the water.


    £14.49£29.99
  • Sale

    Pond Klear

    A natural, green pond water treatment that effectively clears green and murky pond water. The beneficial bacteria in Pond Klear will also help to prevent green water from returning and will prevent algae from growing in your pond.


    £14.99 - £19.99 £12.49 - £19.99
  • Sale

    Sludge Klear

    Natural, bacterial sludge remover for ponds that targets the build-up of unwanted organics at the bottom of your pond. This layer of sludge can sometimes give off unpleasant odours, so it is important to treat it with bacteria.


    £15.99 - £25.99 £12.99 - £25.99
  • Pond Klear Xtra

    Our fastest treatment for clearing green pond water contains 3 times more bacteria than our best-selling pond treatment. The millions of beneficial bacteria that are including in this product target green and murky water and eliminate it for good.

    Treats 40,000 litres


    £29.99
  • Blanketweed Klear

    Fast acting blanket weed killer that targets blanket weed floating on the surface of the pond and kills it within 24 hours. The unique bacteria then help to prevent any blanket weed from re-growing in the pond.


    £15.99£28.99
  • Nitrate Klear

    Removes nitrates from pond water to improve water quality and fish health. Nitrate Klear is a natural product that uses specially selected bacteria to break down and digest nitrates in pond water. It can be used to treat an existing problem or to maintain healthy nitrate levels.

    Treat’s 12,000 litres


    £11.99
  • Natural Pond Klear

    This is a natural green water treatment that has been developed especially for natural, or wildlife ponds that have no pump or filtration system. It will help to clear green or cloudy water and prevent algae growing in the pond.


    £20.00£30.00
  • Pond Klear Xtra & Sludge Klear

    This is a two-product bundle that can be used to either clear green water and sludge, or for keeping pond water clear. The two different strains of unique bacteria will focus on different problem areas in the pond, dirty water and the build-up of sludge.


    £37.99
  • Lake Klear

    Natural lake water treatment that uses beneficial bacteria to clear green and murky water in lakes and natural swimming ponds or pools. The bacteria will also help prevent any algae growth within the water such as blanket weed and duck weed.


    £69.99£179.99
  • Water Feature Klear

    Bacterial water feature cleaner that focuses on clearing green, murky water and preventing the growth of algae. It is safe for all wildlife and pets to continue drinking from the water feature when using this.


    £11.99
  • Sale

    Chlorine Klear

    A food grade tap water dechlorinator designated to remove all chlorine and chloramines from tap water before applying to your pond. Using natural and beneficial Vitamin C, it conditions water and is safe for all fish, wildlife, pets and filtration systems.

    Treats 12,500 litres


    £14.99 £12.49
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