Seachem Flourish Potassium 500ml – Potassium Supplement for Planted Aquariums

Balanced potassium for thriving planted aquariums

Seachem Flourish Potassium is a potassium supplement designed for natural freshwater planted aquariums. It provides a measured amount of potassium to support steady growth in plant communities that demand more nutrients as they mature. The product delivers a high concentration of potassium (50,000 mg/L) in a ready-to-use solution, making it simple to integrate into your routine.

In fast-growing tanks or water with low mineral content, potassium can become depleted. Flourish Potassium helps maintain potassium levels over time, reducing the likelihood of growth-limiting conditions and supporting a vibrant, leafy appearance. It contains no phosphate and no nitrate, keeping the focus on potassium without introducing those nutrients.

Key benefits at a glance

• Potassium supplement for planted aquariums
• High potency: 50,000 mg/L potassium
• No phosphate or nitrate
• Integrates with Seachem Flourish line and Fluorite gravel

Real-life use and setup

In a lush tank with fast-growing foreground plants, regular dosing can help sustain new growth and leaf color. While results vary with plant type and lighting, keeping potassium available supports the plants’ uptake processes over time.

Many aquarists pair Flourish Potassium with other Flourish products to build a complete nutrient regimen. It also complements environments that use Fluorite gravel, contributing to a cohesive nutrient strategy across the substrate and water column.

How to dose

Follow the label directions for your tank size. Dose as part of your routine and allow the solution to mix with the water column. Monitor plant response and adjust dosing frequency according to plant load, lighting, and other nutrients in the water.

Flourish Potassium is designed for natural freshwater systems and is suitable for homes, offices, and any setup where a steady, manageable nutrient schedule is desired. It provides a convenient way to maintain potassium without adding phosphates or nitrates.