Hydra Blue Liquid Dye

Hydra Blue Liquid Dye
Pack Size: 250ml (upto 31,250L)Pack Size: 500ml (upto 62,500L)Pack Size: 1L (upto 125,000L)
Pack Size: 5L (upto 625,000L)Pack Size: 4x5L (upto 2500,000L)

From:  £15.95(Inc. 20% VAT)(£13.29 Exc. VAT)



In stock

Brand:  HYDRA

  (1 Review)
  • Vibrant blue colour
  • Stops light from reaching the bottom. Inhibits or halts algae / weed growth
  • Safe for use in natural swimming ponds & swimming pools
  • No pesticides and herbicides, harmless to fish, plants and wildlife.
  • Shelf life 3 years, 1 litre treats up to 125,000 litres

pdf Datasheet (Hydra Blue Liquid Dye) - Click here

Pack Size Treatment
250 ml Treats up to 31,250 Litres
500 ml Treats up to 62,500 Litres
1 Litre Treats up to 125,000 Litres
5 Litre Treats up to 625,000 Litres
4x5 Litre Treats up to 2,500,000 Litres

Features & Advantages

  • Hydra Liquid Blue Pond Dye is highly concentrated; therefore the recommended application rate is very low.
  • Dyed water is harmless for fish or pets, wild animals, plants or filters.
  • No harmful pesticide or herbicide added.
  • Gives vibrant blue finish to the water.
  • Quick dissolving dye spreads fast through out the water body to give desired blue shade in the water.

Note: Use Hydra Aqua-Brite with Hydra Powder & Liquid Dyes. Do not use with chlorine or any other product unless specified by Hydra International Ltd.


Hydra Liquid Blue Pond Dye is an environment friendly and non toxic. This highly concentrated liquid dye by Hydra gives beautiful blue finish to the water and stops sun rays from penetrating deep inside the water.

Hydra Liquid Blue Pond Dye is widely used by pond hobbyists as well as by hotels and commercial premises to maintain an aesthetically pleasing water body.

*Please note that all images are for illustrative purposes only, Actual colour may vary depending on pond water conditions.

Average Rating (1 Review):  
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What I was looking for
Thursday, 27 February 2020  | 

I use it for my pond of about 1000 liters &very small amount is enough!
Be careful not to overdo it because the effect is really strong!
I ventured with a drop in a tub in a tub and I had to change the water 😅
Dosed with a syringe it is perfect!


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