Flourish Excel promotes the ferrous state of Iron and is a source of bio available organic carbon.
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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 of water has a low mineral content. In these cases Potassium could become the limiting factor in growth.
Use Flourish Potassium to prevent depletion (signs in which include yellowing leaves) and maintain the highest level of growth.
Use 1 capful (5ml) for every 125L of water. This dose raises Potassium by 2mg/L.
Repeat dose 2-3 times a week or as needed (in response to signs of Potassium deficiency in older leaves which includes: chlorosis (yellow), necrosis (death/browning) and weak stems and roots.