Seachem Flourish Potassium Supplement, 4 Litre

Highly concentrated potassium supplement for planted aquariums. Prevents leaf necrosis. Phosphorus- and nitrogen-free. Flourish Potassium is a highly concentrated (50,000mg/L) potassium supplement. Potassium is one of the three vital elements for maintaining rigorous growth in a planted aquarium. Plant growth rapide or poorly mineralized water can lead to potassium depletion, as evidenced by yellowing of older leaves, holes in leaves or deterioration of leaf margins. Flourish Potassium adjusts potassium levels without affecting those of nitrogen and phosphorus. Ideal for heavily planted Dutch tanks. 4 l treats 160000 l.