Lake Blue Dye - 1Kg Treats 10,000,000LPond and lake dyes are a powerful tool for managing algal growth by disrupting the photosynthesis process. When introduced into the water, the dye effectively blocks the 'red' spectrum of light, which is essential for the growth of submerged weeds and algae. Similar to how sunglasses filter out UV radiation, DyoFix acts as a light filter, blocking the 'red' portion of the color spectrum necessary for photosynthesis. When combined with Viresco Algae