In the context of aquariums, potassium is an essential nutrient for aquatic plants. It is one of the macronutrients required for plant health, alongside nitrogen and phosphorus.
Signs of Potassium Deficiency in Aquariums
Yellowing of Leaves: Older leaves often start yellowing, especially around the edges, which is known as chlorosis.
Pinholes in Leaves: Potassium-deficient plants can develop small holes in their leaves, which may eventually spread.
Poor Growth: A lack of potassium results in stunted plant growth and weak, fragile stems.