Flourish Potassium™contains 50,000 mg/L of potassium suitable for
the natural planted aquarium. 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.
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.