SGP Blue is the perfect Blue Pond Dye to apply to your pond or lake water which will disrupt the process of photosynthesis. 

1Kg pack water soluble sachets treats 10 000 000 litres of water

1Kg pack liquid concentrate treats 5 750 000 litres of water

5Kg pack liquid concentrate treats 28 750 000 litres of water

€59.00 Save €1.00
Tax included
On stock

  Information for the buyer

All e-shop information

  Delivery/Return policy (edit with Customer reassurance module)

Delivery and return policy form our e-shop


Return and exchange policy of our e-shop

Pond Blue is the original product offered for use in large lakes. It is the most popular and economical product available. As with all Dyofix products, Pond Blue is completely safe for fish and other wildlife.

Available in two strengths, it is supplied in a concentrated liquid version, and as a powder in water soluble sachets.

Environmentally Friendly Algae Control

  • Environmentally Friendly Algae Control
  • Pond Blue Features and Benefits
  • Works in all large ponds, lakes and fisheries
  • Very economical to use
  • Simple application methods
  • Saves time and effort
  • Blocks light, denying algae's food source.
  • Lasts up to three months
  • Free of pesticides and herbicides
  • Harmless to plants, fish, filters and wildlife
  • All year round use

Aquatic weeds often cause serious problems in ponds, interfering with fishing, boating, swimming, and irrigation. Extremely dense growths of filamentous algae and submerged weeds may cause serious problems to fish as a result of night time oxygen depletion.
Manual algae prevention is very labour intensive and not always practical and the use of chemicals, algaecides, herbicides etc, if not used in precise doses or under strict supervision by experts, can cause an imbalance of the natural nutrients in the pond that may have a negative effect on fish, plants and other species.

  • Available in two strengths:
  • 1Kg pack water soluble sachets treats 10,000,000 litres of water
  • 1Kg pack liquid concentrate treats 5,750,000 litres of water
  • 5Kg pack liquid concentrate treats 28,750,00 litres of water



Application methods:

Sachet application

By supplying powders in separate water soluble sachets it is easy to calculate the number required to dose a lake or pond. In large lakes, if a boat is being used, simply drop sachets in different areas where they will dissolve releasing the DyoFix. By spreading the area, the time taken for the DyoFix to fully mix with the water is reduced.

Using sachets where a boat is not available. Facing the water with a breeze coming from behind, drop a few sachets along the edge and throw the others into the water. The breeze will move the water and DyoFix will dissolve and mix in quite freely. The DyoFix will fully mix with all of the water using this method but may take a little longer.

Liquid application

If a boat is being used, gently pour the amount required into a wide area. The Blue liquid rapidly disperses and will fully mix with all the water in the lake.

If a boat is not available pour the desired amount into the water near the bank. To speed up the distribution it is preferable to use the banks of the lake that have a breeze flowing towards the middle.

Regardless of which method is used, the water will look to have more colour in the first few days because it takes a little longer to mix from the top to the bottom.

Reference Samples

If reference samples are desired, it is suggested that these should be taken at least a week after the initial application.

Samples should be in clear containers with a secure lid, labelled with the date and location and stored in a dark place.

An initial comparison to tap water will show the amount of colour present in the water.



Customers who bought this product also bought:

9 other products in the same category: