Seachem Flourish Potassium

Flourish Potassium™ contains 50,000 mg/L of potassium suitable for the natural planted aquarium. Potassium is one of many elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium. Potassium can be depleted in a fast growing system or when the water source has low mineral content. In these cases, potassium could become the limiting factor for growth. Use Flourish Potassium™ to prevent potassium depletion (signs of which include yellowing of older leaves) and maintain the highest level of growth.

The easiest sources of potassium to obtain are potassium nitrate and potassium phosphate. Both of these sources add up to nitrogen or phosphorus as well as potassium, making it virtually impossible to target a specific NPK ratio. Flourish Potassium™ is derived from potassium sulfate, allowing the user to adjust potassium levels without affecting nitrogen or phosphorus.