Seachem Flourish Potassium

Boost potassium levels in your planted aquarium

At a glance...
  • Highly concentrated form of potassium for planted aquariums
  • Dose regularly to maintain optimum levels of plant growth
  • Free from algae-causing nutrients like nitrogen and phosphorous
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What is Seachem Flourish Potassium?

Seachem Flourish Potassium is a highly concentrated source of potassium designed for boosting and maintaining high levels of growth in planted aquariums. This element, just like several others important for plant growth, is naturally depleted over time in a closed system like a home aquarium. In order to maintain consistent high levels of growth and prevent conditions associated with low levels of potassium, like yellowing leaves, regular doses of potassium are essential.

Unlike other alternatives, Seachem Flourish Potassium is derived from potassium sulphate, rather than potassium phosphate or potassium nitrate. This means that it doesn't contain any nitrogen or phosphorous - two elements that, when dosed excessively, can cause algae blooms. This potassium supplement is also highly concentrated (50,000 mg/L), so a single bottle should last you a long time.

Seachem Flourish Potassium is available in several different sizes, from a small, 50ml bottle to a large, 500ml bottle. This range of sizes ensures there's a bottle of Seachem Flourish Potassium to suit every planted aquarium keeper's needs.

How do I use Seachem Flourish Potassium?

Simply add one capful (5ml) of Seachem Flourish Potassium for every 125L of water. This dose (added straight to your aquarium) will raise potassium levels by ~2mg/L. It's recommended that you repeat this process two to three times a week, or as needed in response to signs of potassium deficiency. Some signs of potassium deficiency include:

  • Chlorosis (yellowing leaves)
  • Necrosis (death/browning)
  • Pinholes in leaves
  • Weak stems and roots
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