pureBLUE is an organic food grade pond dye. These dyes were introduced on the market for ponds to help block sunlight and in turn, will aid in slowing the growth of unwanted algae bloom, duckweed and watermeal. These products are 100% safe to use in any pond, and will not harm people, pets or fish when use as directed.
It’s recommended to use one gallon per acre, but aggressive use can cause a lack of healthy vegetation rates and cause fish kills. Follow the manufacturer’s recommendations on the labels.