Potassium nitrate (KNO3)

Adding potassium nitrate (KNO3) adds less potassium (K) and more nitrate (NO3) to aquarium water. Dosage based on the Estimated Index (EI) method developed by Tom Barr.

Nutrient deficiency symptoms in plants and associated algae growth. (Note: algae growth is not the only cause of plant nutritional deficiency.)