Pond Dye Benefits: Algae Control; Looks; And More

Pond dye can change the appearance of a water feature during a single day.


It is usually applied in concentrated amounts and left to disperse over a number of hours. If you are new to this product, it may seem alarming but the product does not pose a threat to the environment. In fact, it can be helpful to existing species and can be used whether your water feature is very large or very small. The benefits of pond dye are explained below.


The Cosmetic Effect

The geological makeup of an area will decide a pond or lake’s natural color. Unfortunately, this may be a dirty brown or a dull gray, which isn’t as attractive as the pond owner might like. Pond dye can rectify this problem in one easy application. Most pond dyes are blue, for a pond with a traditional appeal; or black, which evokes the image of a deep, clear, lake.


Control of Algae

Prevention of algae is a particularly serious problem in commercial fisheries, where fish can be deprived of oxygen due to a proliferation of algae. Even if you are concerned about fish on a smaller scale, algal bloom can still cause this issue. Pond dyes help to control algae by filtering out some sunlight, which makes it harder for the algae and other malevolent weeds to flourish. The pond dye redresses the natural balance and gives the fish a chance to prosper.


Does Effect Animals or Plants

Most pond dyes do not discolor fish or plants, so the pond’s inhabitants retain their natural colors.



If applied in accordance with the manufacturer’s instructions, pond dye is not toxic to humans, so it is safe to do water sports in a lake that has been treated in this way. Pond dye is also not toxic to fish or plants, and even the good bacteria which breaks down the waste products of fish is not affected by it.


Does not Interfere with Herbicides and Algaecides

If the pond or lake owner has decided to use these products, pond dye will not interfere with their operation.


Some Pond Dyes can Alter the Temperature of the Water

By affecting the way in which the water lets through the sun’s rays, some (but not all) pond dyes can help to raise the temperature of the water, which may help to prevent ice.