Seachem Flourish Potassium is a concentrated potassium supplement specially formulated to meet the potassium demands of aquatic plants in freshwater planted aquariums. Potassium is a vital macronutrient that plays an essential role in plant metabolism, enzyme activation, and overall plant health. Deficiencies in potassium can lead to poor plant growth, yellowing leaves, and weakened plant structure. Seachem Flourish Potassium delivers a concentrated and readily available source of potassium that is easily absorbed by aquatic plants, helping to prevent and correct potassium deficiency and promote healthy, vigorous plant growth. Safe for fish and invertebrates when used as directed, Seachem Flourish Potassium is easy to dose and works seamlessly alongside other Seachem Flourish fertiliser products as part of a comprehensive planted aquarium fertilisation programme. Regular use supports lush, vibrant, and thriving aquatic plant growth in any freshwater planted aquarium or aquascape.