Neptune Deep Blue Concentrated Dye

Neptune Deep Blue is an organic dye that will color your water a deep blueish-black, helping to reduce sunlight in the deeper portions of the pond. It is not harmful to grasses and it will not interfere with the performance of fertilizers, fungicides, insecticides, or other turf chemicals. Neptune Deep Blue is long lasting and remains visible for several months under normal conditions. 1 quart will dye approximately 4 acre-feet of water (1 acre, 4 feet deep).  For help in determining acreage and volume, please visit our Acreage and Volume Calculations page.