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Hydra Fluorescent Green Dye

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Highly concentrated powder dye for use in all types of water bodies including lakes, ponds and fountains. Gives long lasting colour.
Perfect green water dye for St. Patricks Day celebrations.
Shelf Life of 3 Years
Name RRP Price Qty Add to Cart
Fluorescent Green Dye (Powder)-250gm treats 5,000 - 25,000L £20.85
SAVE £2.00

RRP Price: £20.85

SAVE: £2.00

Fluorescent Green Dye (Powder)-500gm treats 10,000 - 50,000L £41.70
SAVE £9.75

RRP Price: £41.70

SAVE: £9.75

Fluorescent Green Dye (Powder)-1Kg treats 20,000 - 100,000L £83.40
SAVE £23.45

RRP Price: £83.40

SAVE: £23.45

Fluorescent Green Dye (Powder)-5Kg treats 100,000 – 500,000L £417.00
SAVE £157.05

RRP Price: £417.00

SAVE: £157.05



Features & Advantages

  • Thrice as strong as the commonly available liquid dye.
  • Available in concentrated powder form.
  • Gives long lasting, rich finish to the water body.
  • Quick dissolving powder produces desired color within minutes of application.
  • Very low dosage required.
  • Herbicides and pesticides free.
  • Food based constituents pose no danger to plants and filters.
  • No harmful effect upon domestic animals or visiting wildlife.
  • A measuring spoon and a pair of protective gloves included in every pack.

How To Use

Usage Rates


  • Recommended dilution varies in the range of 1:20,000 to 1:100,000.
  • 250 grams of Fluorescent Green Dye treats 5,000 - 25,000 litres of water.
  • 500 grams of Fluorescent Green Dye treats 10,000 - 50,000 litres of water.
  • 1 kg of Fluorescent Green Dye treats 20,000 - 100,000 litres of water.
  • 5 kg of Fluorescent Green Dye treats 100,000 - 500,000 litres of water.

Depending on water depth and colour density required.

Dilution may vary depending upon the water's original colour and the required colour intensity.

Full instructions on the label.


Fluorescent Green Dye adds to the festive spirit of St. Patricks Day celebrations by colouring the water green in your fountains, lakes, pools etc. The beautiful colour remains long after; extending your celebrations even after the festival is over. Dyed water also remains algae and weed free. Long shelf life (of 3 years) of the product ensures that you could use the remaining contents for next year's celebrations.

Additional Information

Manufacturer's Suggested Retail Price No

Products Questions:

Posted by on Wednesday, 8 January 2014


Why suggested dilution rates of Fluorescent Green Dye (Powder) propose large range of the amount of water treated?


  • Posted by Aj Edgar on Wednesday, 8 January 2014

    Suggested dilution rates are indicative and the wide range points out the maximum or minimum amount of water in litres that may be coloured using the product. You may adjust the quantity of the dye according to the preferred depth of colour. The quantity of dye used to produce same colour upon second application would significantly reduce if the water body has not lost its complete colour yet. Also if you are using the water dye to change the colour of an already dyed water body, it is recommended to carry out partial water change; you may require higher dose to colour such waters.

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Customer Reviews

All our guests loved the pool
someone told me colouring the water also helps in keeping off the weeds and algae. If this is true I will keep colouring my pond.
Review by Trenton
I just love the colour
I ordered for the dye only to use for the St. Patricks day. Now I feel I would reuse the dye once this colour receeds.
Review by Timothy Brown
Very Astonishing!!
The effect was very astonishing, fast acting and safe to use.
Review by Afsar Khan
What a striking colour!
What a striking colour! I hardly needed to use any to transform my pond into a vibrant green delight for St Paddy's Day. Everyone loved it!
Review by Albert Bulger

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