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Mineral Chemistry
Potassium in Aquaria
The plant macronutrient often deficient in aquariums - a key ingredient in planted-tank fertilisation.
Unit: ppm Code: K
📖 Overview
Potassium is a macronutrient for aquatic plants but rarely tested. Symptoms of deficiency include pinholes in older leaves and stunted growth. Potassium sulfate is the standard supplement; comprehensive plant fertilisers like Seachem Flourish and EI Flourish Comprehensive include potassium.