Seachem Reef Iodide 8.4 oz

FLOURISH POTASSIUM contains 50 000 mg/L of potassium suitable for the natural 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).