Hydra pH Buffer (Pond pH Buffer)
Pack Size: 1Kg upto 1,000LPack Size: 5Kg upto 5,000LPack Size: 2x5 kgPack Size: 20Kg upto 20,000L

Hydra pH Buffer (Pond pH Buffer)

Our Price  £18.86
List Price  £21.07
Saving Of  £2.21 (10%)
(Inc. 20% VAT)(£15.72 Exc. VAT)

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  (8 Reviews)
  • Keeps pond water at optimum alkalinity and hardness for healthy fish
  • Balances Pond water pH and hardness especially in soft water areas
  • Helps protect against effects of acid rain which can cause a pH crash
  • Shelf life 3 years, 1 kilo treats up to 1,000 litres

Brand:  HYDRA


  • Hydra pH Buffer is specially formulated to balance and maintain the pond water at optimum pH levels.
  • Slowly add buffers to the water to balance GH (General Hardness) as well as potassium hydrogen carbonate (KHCO3) hardness.
  • Ideal to use in ponds with soft water.
  • Increases buffering capacity of the water.
  • Counters the low pH levels (increased acidity) occurring due to inevitable rain water addition in the ponds. The rain waters may contain high amounts of CO2 – as result of change in climatic conditions due to global warming. Since CO2 is acidic in nature the pH level of the pond dips considerably after rain.
  • Ponds constructed using vinyl liners or fibre glass show steady decline in alkalinity due to the absence of natural pH buffers. Hydra pH Buffer balances out the pH and maintains the acceptable pH level in the ponds.


Most ponds, especially those in soft water areas, show steady decrease in pond alkalinity over time. The reasons for reduced alkalinity are:

  • Bacterial activities in the water that release acidic compounds.
  • Rains with high COcontent mixing with the pond water.
  • Fertilizer run offs from the surrounding area, dead vegetation and fish excrement in the pond water.

Aquatic processes are pH sensitive, a slight imbalance in the pH levels drastically affects the fish and their body functions leading to stress and diseases. Therefore pond hobbyists strive to maintain optimum pH levels at all times.


Hydra pH Buffer granules slowly release buffering compounds in the water to keep the pond at optimum hardness and alkalinity. An ideal solution to balance pond pH.


  • 1 kilo treats 1,000 litres of water.
  • 5 kilos treats 5,000 litres of pond water.
  • 20 kilos treats 20,000 litres of pond water.
  • Full usage instructions on label. 
Average Rating (8 Reviews):  
Write a Review and share your opinions!

17 July 2020  | 

Worked on my pond.


This review has not been appraised.

Great service
22 June 2020  | 

Arrived in less the 24 hours. I have bought this previously so I know it works a treat.


This review has not been appraised.

Great work
16 June 2019  | 

Great performance, great service and great company. It does what it needs to do and works quickly. I cannot fault and will definitely buy again.


1 of 1 people found this review helpful.

Worked well
19 May 2019  | 

Product works well and safe to use with the fish. It really has improved my pond water.


1 of 1 people found this review helpful.

Highly recommend
29 March 2019  | 

Done a grand job. Within an hour of putting into my pond the levels altered to the right amount. Highly recommend.


3 of 3 people found this review helpful.

Good product
04 June 2018  | 

Happy with my purchase as this product has worked well. My pond water was unbalanced so I added this to come back a couple of days later to be perfect again. Very easy to use with quick delivery.


4 of 4 people found this review helpful.

11 May 2018  | 

Followed as instructed to have a clearer pond with plants growing nicely and the right ph. Super!


1 of 1 people found this review helpful.

It works
25 April 2018  | 

I have been struggling with the ph levels in my pond but with using this product the results are amazing.


3 of 3 people found this review helpful.