Create a stunning water feature with black pond dye

Dyofix Pond Black is a black pond dye used in smaller ponds and fountains where a dramatic affect is required.

Garden designers use black pond dye to create an obsidian black mirror reflection for a stunning garden pond design.

Sunlight, moonlight or candlelight, the black mirror finish of the black pond dye looks amazing and puts the finishing touch to your water feature.

Dyofix Pond black is a perfect black pond dye for garden designers


pond black for small garden ponds ponds

DyoFix Pond Black 50g

£12.00 £14.40 incl. Vat

50g dissolvable sachet | Treats 1,500 Litres

Dyofix Pond Black liquid

DyoFix Pond Black Liquid 300gm

£16.50 £19.80 incl. Vat

300g bottle | Treats 1,000 Litres

pond black 1kg - 1-x 100g

DyoFix Pond Black Powder 1Kg

£40.00 £48.00 incl. Vat

1kg dissolvable sachets | Treats 30,000 Litres

DyoFix Pond Black Powder 200g

DyoFix Pond Black Powder 200g

£22.00 £26.40 incl. Vat

200g dissolvable sachet | Treats 6,000 Litres


All pond dyes are animal friendly

Dyofix black pond dye halts the growth of algae

Pond Black is used in smaller ponds where the need to stop algae growth and weed growth is important. The black pond dye absorbs and blocks all daylight, allowing no light to penetrate below the surface, hence the black appearance.

Your pond plants that have leaves and flowers above the surface of the water are not affected at all by the use of Pond Black. Fish are also safe in this environment but Pond Black darkens the surface of your pond markedly, making it impossible to see the fish.

Before and after pictures of using black pond dye

Pond dye beforePond Dye after


  • Blocks light, denying algae its food source
  • Enhances your pond’s reflective qualities
  • Creates a stunning mirror-like backdrop for your water plants
  • Free of pesticides and herbicides
  • Harmless to water filters and plants
  • Saves time for the weekend gardener
  • Helps created spectacular water features
  • One application can last up to three months


Soluble sachets

Each cold water soluble sachets of black pond dye treat a minimum of 6000 litres of pond water.

If more than one sachets are required, simply drop them into different parts of the pond. The sachet will dissolve to release the dye. The water can be stirred to speed up the mixing process.

Pond Black has fully mixed in when you cannot see below the surface of the water. Don’t add any more at this stage.

Liquid black pond dye

Each bottle containing 300g of black pond dye will treat up to 1000 litres of pond water. The liquid dye must be poured very carefully into the pond water to avoid splashes of concentrated dye on yourself or your surroundings.

Application method for very small ponds

It is suggested that 200g should be mixed in a known quantity of water, for example, 6 litres – use a watering can for the mixture. Carefully pour out the mixture into 6 x 1 litre bottles. 1 litre of the mixture will treat a minimum of 1000 litres.

Use the amount that proves to be sufficient and close the remaining bottle(s) and identify them as “DyoFix Pond Black Liquid” and store them in a dark place for future use. If the bottles have been standing for a long period, shake them before use.


How much Pond Black should I order?

If you need any assistance please email our sales department or telephone sales by dialling 0113 256 4251.