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Bleu marine is a dual-action biological dye designed to improve the visual appearance of water bodies while durably limiting the development of algae and aquatic plants.
By filtering out the light rays necessary for photosynthesis, it acts as a natural UV filterwithout the use of toxic substances.
The result: instantly azure-bluewater that looks more uniform, and a gradual reduction in plant overgrowth.
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Available packaging options
Liquid version (concentrate)
Mechanism of action: a physical, non-chemical mechanism
Bleu Marine not a herbicide.
It does not kill plants through chemical action, but by depriving them of light.
By tinting the water, the product filters out the specific wavelengths required for photosynthesis.
Since the plants can no longer develop properly, their growth is gradually and naturally stunted.
Action focused on the substance
The UV filter primarily affects plants that begin growing underground before they emerge above ground.
Target species
Dosage and frequency of application
For effective UV filtration and stable coloration, the treatment must be renewed every 4 to 6 weeks during the growth period.
Directions: Place the packet directly into the water without opening it.
Directions: Dilute or pour into the wake of a rowboat or motorboat.
When should treatment begin?
Starting in early spring (March/April) and continuing through fall (October), depending on plant growth.
Expert advice and safety
Although Bleu Marine organic and non-toxic when diluted:
Using too little product will render the UV filter ineffective.
If you are unsure about the surface area or depth of your pool, a TASO technician can assist you.
