Seachem Flourish Phosphorus

Phosphorus is one of the three major macronutrients (Nitrogen, Phosphorus, Potassium: NPK) required by plants and can often become the limiting factor for growth in a thriving system. Flourish Phosphorus™ is a safe (4500 mg/L phosphate) solution 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™ (being nitrate-free) allows you to dose phosphorus according to your plants' needs without the risk of nitrate overdosing. When used as directed, Flourish Phosphorus™ will enhance and accelerate aquatic plant growth without enhancing algae growth.

For maximum benefit, use with Flourish Nitrogen™ and Flourish Potassium™. Flourish Phosphorus™ is safe for invertebrates such as shrimp.