This is true, but only when nitrogen levels become excessive, that is, when there is more nitrogen available than the plants can use. When this happens, it becomes available to algae. Nitrogen is still vital to plant growth, though. Flourish Nitrogen™ should be used in cases where there is a nitrogen deficiency
FAQ: I thought nitrates were bad and could lead to unwanted algae growth. Why would I want to add it my aquarium?
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