Here at PondH2o Green Water & String Algae issues are a subject that is one of the most sought after answers in pond keeping, how to get in front of algae control?
Always nearly caused by a in balance in nutrients in the pond caused by many factors which we will go through and explain each. If you look at a natural pond or lake it may be crystal clear even without any filtration. This is called a balanced pond which translates into that all the parameters of nitrite, nitrate and phosphate are inline so not causing an algae bloom, so the other end of the spectrum is a unbalanced pond. Causes of a Unbalanced Pond, Green Water & String Algae Issues.
High phosphates in the water, resulting in algae having a rich food source in which to thrive. Overfeeding, if the fish have not eaten the food within 5 minutes you are overfeeding.
Too much sunlight, algae need sunlight which is why this problem is worst in the Spring as the water warms up and taps into the nutrients available.
Too high Fish Load, having too many fish in the pond causes water quality issues of Nitrite turning into Nitrate linked to food and fish waste.
Not Enough Plants, pond plants compete to use up the nutrients just like the single cell algae or string algae so add plants, especially one that will add shade like a floating planter.
In closing, there are many factors involved in algae control.
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