WHAT IS AQUASHADE? Aquashade is a blend of blue and yellow dyes specifically designed to screen or shade portions of the sunlight spectrum (red-orange and blue-violet) required by underwater aquatic plant and algae growth. Aquashade is available in individual one gallon bottles or by the case. Each case contains four one gallon bottles.
 
Aquashade® Aquatic Plant Growth Control is more than just a dye. It’s a carefully formulated blend, registered with the EPA, that has been demonstrated to manage underwater aquatic plants by restricting the sunlight they need for photosynthesis.
This potent formulation has been tested and shown to effectively halt photosynthesis underwater. It’s the preferred choice of professional applicators for the prevention and control of underwater weeds.
It shows the best results in water that is more than two feet deep. For controlling surface algae mats or shallow-water plants, it’s recommended to use Aquashade® in combination with herbicides or algaecides.