Seachem Flourish Nitrogen - 500 ml
Flourish Nitrogen™ is a concentrated (15,000 mg/L) blend of nitrogen sources. It provides nitrogen in both the nitrate form and the plant-preferred ammonium form. However, no free ammonia is released because the ammonium in Flourish Nitrogen™ is complexed and unavailable until utilized by the plants. Flourish Nitrogen™ also provides nitrate for those plants that can readily utilize nitrate as well. For maximum benefit use with Flourish Phosphorus™ and Flourish Potassium™. Unlike competing products, Flourish Nitrogen™ is entirely phosphorus-free, making it possible to adjust the nitrogen level in an aquarium without affecting phosphorus levels.
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