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→Nutrients
<h4>Phosphorous</h4>
<h4>Phosphorous</h4>
<p>Plants (including algae) require three macro nutrients to grow: Nitrogen, potassium, and phosphorous. Of these three, phosphorous is the often the "growth-limiting" nutrient. i.e. the local environment may have an abundance of nitrogen and potassium, but algae won't develop until phosphorous is added too. </p>
<p> Major sources of man-made phosphorous in the environment include agricultural fertilizers