Seachem Flourish Phosphorus

Phosphorus is one of the three main macronutrients (nitrogen, phosphorus, potassium: NPK) required by plants and can often be the limiting factor for growth in a flourishing system. Flourish Phosphorus™ is a safe solution (4,500 mg/L phosphate) of potassium phosphate that takes the guesswork out of phosphate dosing. Unlike competing products that mix nitrate and phosphate in a fixed ratio, Flourish Phosphorus™ (which is nitrate-free) allows you to dose phosphorus according to your plants' needs without the risk of nitrate overdose. When used as directed, Flourish Phosphorus™ will enhance and accelerate the growth of aquatic plants without increasing algae growth. For maximum benefit, use with Flourish Nitrogen™ and Flourish Potassium™. Flourish Phosphorus™ is safe for invertebrates such as shrimp.