Seachem Flourish Potassium 250ml – Premium Aquarium Plant Fertilizer for Healthy Growth and Vibrant Leaves

Description

Seachem Flourish Potassium 250ml – Premium Aquarium Plant Fertilizer for Healthy Growth and Vibrant Leaves.
 

Give your aquarium plants the nutrient boost they deserve with Seachem Flourish Potassium 250ml, a scientifically formulated liquid fertilizer designed specifically to provide a concentrated and pure source of potassium (K) - one of the most vital macronutrients required for strong, healthy plant growth in all freshwater planted aquariums.

In a thriving planted tank, potassium can easily become depleted due to rapid plant growth or low mineral content in source water. When this happens, plants may begin showing signs of potassium deficiency such as yellowing (chlorosis) of older leaves, pinholes, weak stems, and poor root development. Seachem Flourish Potassium™ solves this problem by offering a direct, nitrate- and phosphate-free source of potassium, ensuring that your plants receive this essential element without unwanted nutrient imbalances.

Unlike many commercial fertilizers that contain potassium nitrate or potassium phosphate, which add unnecessary nitrogen or phosphorus to the system, Seachem Flourish Potassium™ is derived from potassium sulfate (K₂SO₄) - allowing aquascapers and hobbyists to precisely dose potassium levels without affecting the nitrogen-phosphorus balance. This makes it perfect for high-tech planted tanks, aquascapes using CO₂ systems, and tanks with sensitive livestock where water chemistry must be carefully maintained.

Each milliliter of Seachem Flourish Potassium™ contains 50,000 mg/L (5%) of elemental potassium, making it one of the most concentrated and effective potassium supplements available for freshwater aquariums. Regular use helps maintain strong cell walls, vigorous root development, lush leaf growth, and vibrant coloration in all types of aquatic plants - from carpeting species like Hemianthus callitrichoides (Cuba) and Glossostigma elatinoides, to stem plants like Rotala, Ludwigia, and Hygrophila.

Key Features and Benefits:

• High-Purity Potassium Source: Contains 50,000 mg/L of potassium from potassium sulfate for precise nutrient management.

• No Nitrogen or Phosphorus: Prevents algae outbreaks by avoiding excess nitrate and phosphate.

• Promotes Healthy Growth: Encourages strong cell structure, lush leaf development, and vibrant color expression.

• Corrects Potassium Deficiency: Eliminates chlorosis, leaf pinholes, and necrosis caused by low potassium levels.

• Safe for All Aquariums: 100% fish-safe, shrimp-safe, and suitable for all planted aquarium types.

• Ideal for Advanced Aquascaping: Perfect for CO₂-injected or high-light setups where nutrient balance is critical.

• Concentrated Formula: Long-lasting 250ml bottle suitable for both beginner and professional aquascapers.

How to Use:

• Shake well before use.

• Dose 1 capful (5 mL) for every 125 L (30 US gallons) of aquarium water.

• This dose raises potassium concentration by 2 mg/L.

• Use 2–3 times weekly or as required, depending on plant growth rate and visible deficiency symptoms.

When to Use:

Use Seachem Flourish Potassium 250ml whenever your plants exhibit yellowing on older leaves, browning edges, or slow growth. It’s also ideal after large water changes, during active plant trimming cycles, or in tanks with soft or RO water.

Composition:

Derived from potassium sulfate (K₂SO₄).

• Elemental potassium concentration: 50,000 ppm (5%)

• Does not contain nitrates or phosphates

Why Choose Seachem Flourish Potassium?

Seachem is globally trusted for its scientific approach to aquarium care, and Flourish Potassium™ is no exception. It provides accurate nutrient supplementation backed by research and experience, ensuring your aquascape remains balanced, healthy, and stunning to look at.

Whether you’re maintaining a lush planted tank or designing a professional aquascape, Seachem Flourish Potassium 250ml delivers the essential element your plants need for steady growth and long-term vitality - without compromising water clarity or stability.