Description
Blue Lagoon tints your pond or lake a natural blue, reducing light penetration and filtering UV rays from the sun. Contains no methylene blue, fungicide or algaecide — just a USA-developed polymeric colourant. Dosage can be increased as needed without harming fish, though higher doses may slow plant growth. One litre treats up to 40,000 litres of water.
Directions: Add 5ml per 150–200 litres of water. Shake well before use.
