Hydra Quartz (Pond Blanket Weed Treatment)

Hydra Quartz (Pond Blanket Weed Treatment)
Pack Size: 1Kg upto 12,500LPack Size: 2X1Kg upto 25,000LPack Size: 3X1Kg upto 37,500LPack Size: 4X1Kg upto 50,000L
Pack Size: 5Kg upto 62,500LPack Size: 2X5Kg upto 125,000LPack Size: 3X5Kg upto 187,500LPack Size: 20Kg upto 250,000L
Our Price:  £14.95
List Price:  £20.60
Saving Of:  £5.65 (27%)
(Inc. 20% VAT)(£12.46 Exc. VAT)

Combo: Quartz + Bio Aquatic Bacteria

For Pond/Fountain Water Volume Calculator Click Here

Brand:  HYDRA

  (13 Reviews)
  • Highly effective biological blanket weed treatment
  • Rapid action starts working immediately - No waiting weeks for results
  • Best barley straw alternative, without the usual barley straw mess
  • Shelf life 3 years, 1 kilo treats up to 12,500 litres

Features & Advantages

  • Hydra Quartz granules are easy to apply and can be broadcast or sprinkled directly over the pond blanket weed patch.
  • Works on the principle similar to traditional barley straw treatment but gives faster results. No need to deal with smelly, decomposed straw.
  • This enzyme and bacterial action help to prevent the re-infestation of blanket weed.
  • No need to switch off the UV lights.
  • Biological filters and pumps remain unaffected during treatment.
  • Natural and eco-friendly components of Hydra Quartz pose no danger to aquatic life including fish and water plants. Safe with pets, birds and visiting animals that may drink treated water.
  • No harmful effect on concrete surfaces or synthetic liners.
  • No effect on the pH level of the water.
  • It is the best garden pond blanket weed solution to cure blanket weed.

How does Hydra Quartz Work and How to Use:

  • Use Hydra Quartz, blanket weed cure with the first appearance of blanket weed.
  • Broadcast over the affected area.
  • Product may foam upon application, this is normal.
  • Ponds with fish should treat half of water surface at a time to give fish space to swim away from the dying blanket weed.
  • Hydra Quartz granules act instantly on the weed, which die off completely usually within 2-3 days after that remove the dead blanket weed from the pond.
  • Dead blanket weed, if not removed decomposes and will drop down to the bottom.
  • Waterfalls should be turned off before treatment. Apply Hydra Quartz on the ledges and leave for 30 minutes, brush over the surface. Running the waterfall after treatment washes away the weed. Treat the pond thereafter.
  • Special formulation of Hydra Quartz keeps the blanket weed control for long intervals; however spores may easily travel back into the water body through wind, birds and new addition of water plants. Re-apply Hydra Quartz with the first sign of infestation.
  • Apply the product in full strength if re-growth is seen.


The Problem

Blanket weed is a widespread nuisance for most pond keepers. Characteristically, blanket weed spreads in the form of long filaments and quickly covers the water surface with a woven filamentous growth.

Blanket weed grows fast under sunshine, especially in ornamental ponds with fish. Pond keepers over feed the fish causing additional nutrients (nitrates and ammonia) to leach into the ponds in the form of uneaten fish food and excessive fish excrement. If left unchecked, blanket weed may cause severe oxygen depletion in a water body along with creating stress for the larger fish by hindering their movement.

Pond keepers sometimes pull out the live blanket weed manually; this results in shedding of numerous spores within the water. The spores eventually grow and blanket weed returns in a rather severe form,  covering even larger water surfaces.

The Solution

Hydra Quartz is proven as a highly effective treatment to get rid of blanketweed. Product constituents include natural minerals and sequestrates. Hydra Quartz starves the blanket weed by absorbing the nutrients on which the weed survives. The growth dies off normally within two to three days, after which it could be safely removed without the risk of releasing spores into the water.

Hydra Quartz is completely biodegradable and does not remain in the water for long but reverts to oxygen and water within 48 hours.

What is Blanket weed?

The term blanket weed is used to describe various strains of filamentous algae. Blanket weed may appear in a pond as fine wispy hair like growth on the sides of the ponds. Blanket weed may infest the pond as thick and candy floss looking mass floating freely on the water surface or choking the water plants. Similar to green water causing algae, blanket weed also spreads quickly in sun exposed ponds with nutrient rich water. Blanket weed are unsightly and may choke plants and fish.


Average Rating (13 Reviews):  
Write a Review and share your opinions!

New Review
Friday, 31 July 2020  | 

well wot can I say ordered yesterday 30th July ----arrived today 31st July ---------------that is good service in any bodies book .
So well done to your team

Many Thanks



1 of 1 people found this review helpful.

New Review
Tuesday, 7 July 2020  | 

Hello Hydra Int,

I felt it would be nice to say a big thank you for the prompt delivery of this order. It must be very challenging to deal with orders during these trying times yet you somehow manage to give the same service as was experienced prior to the pandemic. Well done!

Kind regards



This review has not been appraised.

Friday, 29 May 2020  | 

I have been using this product since 2016. It really is truly magical as all traces of blanket weed disappear almost instantly. I've just ordered it for a second time. The delivery serivice is also five star. The product arrived within 24 hours of my ordering it online. Thank you very much for such a brilliant service.


1 of 1 people found this review helpful.

Hydra Quartz blanket weed treatment
Saturday, 15 June 2019  | 

This product does exactly as it states on the tin. I had an awful problem with blanket weed. I kept pulling great bundles of it from my pond, both from the bottom and around the edges. This product literally worked within the hour. Now a week on all traces of the weed have gone. Excellent product. My compliments to the chef.


40 of 40 people found this review helpful.

Only treatment that seems to work!
Tuesday, 16 May 2017  | 

I've been using this for years as it seems to be the only treatment that works and works fairly quickly. Usually needs two or three treatments but it clears the weed and it doesn't return until the following year. Pond has a lot of goldfish in (close on 200 probably) and in full sun and previously we have tried both natural and chemical treatments but this is by far the best.


18 of 18 people found this review helpful.

Keech Hospice Pond
Monday, 15 May 2017  | 

I buy Hydra Quartz to treat Blanket Weed in the Keech Hospice pond which has no filter system just a fountain. It gave good results last year so we are treating it again this year. At present the blanket weed is minimal.


9 of 9 people found this review helpful.

Gets rid of blanket weed
Sunday, 14 May 2017  | 

Got rid and killed all of in 2 days


4 of 4 people found this review helpful.

Destroys blanket weed fast
Friday, 12 May 2017  | 

Treated pond early this year when blanket weed first set in and although visible was not established. Treated with recommended dose and visibly breaking up almost instantly. Used the bio aquatic bacteria this helped clear the dead and soon had pond looking good.


11 of 11 people found this review helpful.

Tuesday, 9 May 2017  | 

This stuff is from another planet, couldn't believe how well and how quickly it worked. My pond was really badly infested by blanket weed, just followed the instructions and was clear in a few days. Highly recommended.


3 of 3 people found this review helpful.

Best products I have found
Monday, 8 May 2017  | 

I have tried many different products to clear blanket weed and Hydra Quarts is the best I have found, it brings all the dead weed to the top of the pond


3 of 3 people found this review helpful.

Read all 13 customer reviews...

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