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SEACHEM FLOURISH POTASSIUM 500ml – High-Concentration Liquid Potassium Supplement for Planted Aquariums, Large Format
Seachem Flourish Potassium 500ml is a highly concentrated liquid fertilizer delivering 40,000 mg/L of potassium in a form specifically designed for freshwater aquariums. As a vital macronutrient, potassium supports photosynthesis, nutrient transport, and healthy tissue development in aquatic plants.
In fast-growing planted tanks or low-mineral water conditions, potassium can quickly become a limiting factor, leading to symptoms such as chlorosis (yellowing), necrosis (tissue decay), and stunted growth. Flourish Potassium effectively addresses and prevents these issues, ensuring vibrant, resilient plant growth.
The 500ml format provides long-lasting value for larger tanks or frequent use. For best results, use in combination with other Seachem fertilizers and Seachem Equilibrium during water changes to stabilize overall mineral balance.
Main features:
Extremely concentrated: 40,000 mg/L of pure potassium
Prevents and corrects chlorosis, necrosis, and weak growth
Enhances photosynthesis and strengthens plant structure
Free of phosphates and nitrates, algae-safe formula
Safe for fish, shrimp, and other aquarium inhabitants
Cost-effective 500ml bottle for large or heavily planted tanks
Fully compatible with Seachem’s complete fertilizer line
Dosage instructions:
Add 5 ml (1 cap) per 125 liters to raise potassium by 1 mg/L
Repeat 2–3 times weekly or adjust based on plant response
Increase dosing if deficiency symptoms are visible
Why choose Seachem Flourish Potassium 500ml:
Ideal for maintaining potassium levels in medium to large planted tanks, Seachem Flourish Potassium 500ml ensures healthy plant development, prevents nutrient imbalances, and promotes lush, vibrant aquascapes through a safe and efficient dosing approach.
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