Seachem Flourish Potassium – Plant Nutrient Supplement (250ml)

Seachem Flourish Potassium is a premium potassium supplement formulated for freshwater planted aquariums. Potassium is one of the three essential macronutrients (NPK) required by aquatic plants. In rapidly growing systems or in areas with soft water, potassium can become a limiting factor, leading to poor plant health.

This product contains 50,000 mg/L of potassium derived from potassium sulfate, allowing aquarists to dose potassium without adding nitrogen or phosphorus. It is ideal for use alongside Seachem Flourish Nitrogen and Flourish Phosphorus for complete nutrient control.

Key Features:

– Highly concentrated: 50,000 mg/L elemental potassium
– Does not contain phosphate or nitrate
– Prevents potassium deficiency symptoms like yellowing, necrosis, and weak stems
– Safe for all freshwater plants and fish
– Compatible with CO₂-injected and high-light tanks

Product Specifications:

Brand: Seachem
Volume: 250 ml
Form: Liquid
Country of Origin: United States

Directions for Use:

Use 1 capful (5 mL) for every 125 L (30 US gallons) of aquarium water. This dose raises potassium by 2 mg/L. Repeat 2–3 times per week or as needed based on plant response.