Potassium is one of several elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium. Potassium can become depleted in a rapidly growing system or when the source water has a low mineral content. In these cases potassium could become the limiting factor to growth. Use Flourish Potassium to prevent potassium depletion (signs of which include yellowing in older leaves) and maintain the highest level of growth.

Product Features:

Contains 50,000 mg/L of potassium
Suitable for the natural planted aquarium
Does not contain phosphate or nitrate
Ideal for use with Flourish Nitrogen and Flourish Phosphorus

Instructions:

Use 1 capful (5 mL) for every 125 L (30 US gallons). This dose raises potassium by 2 mg/L. Repeat 2–3 times per week or as needed in response to signs of potassium deficiency in older leaves which include: chlorosis (yellowing), necrosis (death/browning), pinholes in leaves, and weak stems and roots.

Technical details:

Sizes: 250 ml, 4 L

Derived from: Potassium sulfate

Elemental potassium is present at a concentration of 50,000 ppm (e.g 5%). Fertilizer laws require us to list potassium in terms of equivalence to a material that is not present (K₂O) rather than the more scientifically sound method of simple elemental equivalence.

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