Colors water in natural and manmade ponds, lakes and fountains a pleasing aqua-blue, enhancing the aesthetic qualities of a water body. 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. This action effectively inhibits photosynthesis in young, bottom growth and may prevent development altogether if applied early enough in the season. Aquashade is primarily effective at depths of two feet or greater. Inhibition of planktonic (suspended) algae blooms has also been proven. One gallon treats one acre of water with an average depth of four feet (approximately equivalent to one ounce per 10,000 gallons). About the Brand: Applied Biochemists was developed for use in lakes, ponds, and other outdoor bodies of water. Our water care products are both economical and powerful enough for the toughest jobs. Within Applied Biochemists’ wide selection of products, we offer everything from algaecides and deposit control formulas to non-chlorine shock treatments, powerful surface cleaners, clarifiers, enzyme-based cleaners, and more.