A Professional supplement of easily absorbable phosphorus for aquatic plants. Phosphorus is an essential component of phospholipids and nucleic acids and plays a crucial role in cell energy processes. Plant demand for phosphorus increases significantly in highly lit, CO2 fertilized aquariums. Regular use of AF PO4 Boost makes it possible to avoid deficiencies, which can slow growth, turn brown and affect leaf tips. Regular use of AF PO4 Boost makes it possible to replenish the deficiency of this valuable macro-element in water and pays off in the form of healthy and lush leaf development at a later stage of growth. The recommended phosphate level in the aquarium is 0.5-1.5 mg/l.