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Hydra Pond Clear Plus

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Removes green water from ponds WITHOUT External Filter Box.
Completely biodegradable, mineral based pond cleaner that is safe on aquatic life and pets. No harmful effects on filters, pumps and synthetic liners.

Shelf Life of 3 Years

Name RRP Price Qty Add to Cart
Hydra Pond Clear Plus-1Kg treats 10,000L £18.95
SAVE £4.50

RRP Price: £18.95

SAVE: £4.50

Hydra Pond Clear Plus-2x1Kg treats 20,000L £37.90
SAVE £10.45

RRP Price: £37.90

SAVE: £10.45

Hydra Pond Clear Plus-5Kg treats 50,000L £67.94
SAVE £13.99

RRP Price: £67.94

SAVE: £13.99

Hydra Pond Clear Plus-20Kg treats 200,000L £419.00
SAVE £249.05

RRP Price: £419.00

SAVE: £249.05



Features & Advantages

  • Hydra Pond Clear Plus is a completely biodegradable mineral based product to effectively control and prevent the appearance of pond green water for extended periods
  • Ion exchange action of the product absorbs various water pollutants along with phosphates and nitrites
  • Acts instantly upon coming in contact with water by electrically charging scattered algae cells causing them to cluster and float on the surface. The algae clusters can then be removed using pond skimmers or net lined with a cloth.
  • Does not alter the pH level of the water
  • Biological Filters, pumps, pond liners (synthetic or concrete) remain unaffected
  • Harmless to all fish, birds, reptiles, invertebrates, humans, mammals, animals and water plants
  • Fast acting constituents clear green water in ponds without exterior filter systems.
  • Easy application by simply broadcast over the water surface
  • UV lights do not hamper the product action and may be left on during the treatment
  • Two applications may be required to clean heavily green pond water
  • Ideal for ponds without external filters


How To Use

Usage Rates

Dilution- 1:10,000

  • 100 g of Hydra Pond Clear Plus treat 1,000 litres of water.
  • 1 kg of Hydra Pond Clear Plus treats 10,000 litres of water.
  • 2x1 kg of Hydra Pond Clear Plus treats 20,000 litres of water.
  • 5 kg of Hydra Pond Clear Plus treats 50,000 litres of water.
  • 20 kg of Hydra Pond Clear Plus treats 200,000 litres of water.

How Does Hydra Pond Clear Plus Work and How to Use:

  • Broadcast the required amount of product over the water surface.
  • Ensure adequate aeration of the water body whilst treating.
  • Do not turn off the UV lights.
  • The product constituents activate instantly upon coming in contact with water and charge the individual algae cells to create algae clumps that float on the surface.
  • As algae rise to the surface, skim off from the surface immediately.
  • Your water should start to clear within a few hours with full results by 7 days.
  • Ponds with heavy infestation may show desired results  after two applications.

Hydra Pond Clear Plus is a safe and cost effective pond water treatment.

Full instructions are on label.



The Problem

When the spring sunshine comes it brings with it the potential to turn your clear, clean pond water  green. The build up of nutrients over the winter months and the warming of the water, create the perfect breeding ground for microscopic single-celled algae. These algae can be unsightly and greatly reduce visibility in your pond.

The Solution

Hydra Pond Clear Plus helps you in keeping a pond clear and healthy. It is a perfect pond cleaner that filters out the pollutants in ponds without the external filters or poor mechanical filter systems.

Use Bio Aquatic Boost to keep the pond water healthy and balanced. Hydra Bio Aquatic Boost thwarts the algae growth by discouraging nutrient build up in the ponds.

Additional Information

Manufacturer's Suggested Retail Price No

Products Questions:

Posted by Gary on Wednesday, 4 June 2014


Hi do I scatter the crystals over the pond or dilute them in a watering can ?


  • Posted by Simon Reid on Wednesday, 4 June 2014
    Sprinkle product evenly over the surface. Switch off the UV, pumps and fountains. Net off algae as it floats to the surface and hover any debris at the bottom of the pond vac. After treatment switch all equipment back on. During treatment do not leave pond unsupervised, allow plenty of time to observe fish in case of adverse reaction. If fish come to surface during treatment ensure adequate aeration by water/air pumps/water hose pipe. For further information read full instruction on the label.
Posted by Ray Curtis on Thursday, 3 April 2014


Do you post to Spain please


Posted by on Wednesday, 4 December 2013


My pond water is like pea soup and I also see blanket weed hanging from the sides of the pond. Can I use Hydra Quartz (blanket weed remover) and Hydra Pond Clear Plus at the same time?


  • Posted by Aj Edgar on Wednesday, 4 December 2013

    No two algae treatments should be carried out together. We suggest that you use the blanket weed treatment first and then pond clear plus, leaving at least 48 hours between each.

Posted by on Tuesday, 3 December 2013


How often should I repeat treatment with Hydra Pond Clear Plus?


  • Posted by Aj Edgar on Tuesday, 3 December 2013

    Pond Clear Plus should not be used on clear water as it needs to react with organic matter.  If your pond is heavily green and you need to re treat, leave at least 48 hours between consecutive treatments and change at least 10% of the pond volume before subsequent treatment.

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Customer Reviews

Review by Sam
Good Stuff
Found this worked a treat and my pond was rid of all green algae and has remained so since. Excellent. Review by William
Prompt service from this supplier
I received a very prompt service from this supplier. The product has partially done the job but I shall need to give the pond a further treatment to fully clear the "Pea soup". However, my pond was very dirty so this is perhaps to be expected.
Review by Daniel
pond clear
Very happy with this product have used it before and had no hesitation in reordering it does a great job will recommend
Review by Kyle
Great item
Did the job I wanted it to do and would recommend it to anyone who has problems getting pond clear. Review by Diego
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