Seachem Flourish Phosphorus is a concentrated phosphorus supplement specially formulated to provide aquatic plants with a readily available source of phosphorus in freshwater planted aquariums. Phosphorus is a critical macronutrient that plays an essential role in energy transfer, root development, and overall plant growth and health. Deficiencies in phosphorus can lead to poor plant growth, darkening or discolouration of leaves, and reduced plant vitality. Seachem Flourish Phosphorus delivers a bioavailable source of phosphate that is easily absorbed by aquatic plants, helping to prevent and correct phosphorus deficiency and support healthy, vigorous growth. Safe for fish and invertebrates when used as directed, Seachem Flourish Phosphorus 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, thriving, and healthy aquatic plant growth in any freshwater planted aquarium or aquascape.