Hydra Black Water Dye (Powder)   Long Lasting Water Dye - Deepest Black to Give Mirror Finish Use in Ponds, Fountains & Lakes Highly Concentrated x3 Times Stronger Than Liquid Dyes

• Highly Concentrated Powder - three times stronger than liquid dyes.
• Gives a highly reflective mirror like finish to water - Lasts for months.
• Within minutes of applying the product, the pond water is coloured black.
• Blocks the sun's rays (UV light) to effectively starve the growth of existing algae and formation of new.
• Enhances the reflective properties of ponds and water features.
• Creates a stunning background for water plants.
• Completely free of pesticides and herbicides.
• Hides aquatic life from predators.
• Food based dye, harmless to filters and plants.
• The dosage recommended is very low and has no effect on fish, any visiting wildlife or domestic animals.
• Each pack of dye contains a pair of protective gloves.
• Full usage instructions on label.
• Normal dilution is 1:17,000.

• 250g treats 4,250 litres of water.
• 500g treats 8,500 litres of water. 
• 1000g (kilo) treats 17,000 litres of water.
• 5 kilo treats 85,000 litres of water.