Flourish Phosphorus™ is a protected solution (4500 mg/L phosphate) of potassium phosphate that takes the guess work out of phosphate dosing. Unlike competing products that blend nitrate and phosphate in a fixed ratio, Flourish Phosphorus™ (being nitrate free) means that you can dose phosphorus consistent with the wishes of your plants without the danger of overdosing nitrates. When used as directed Flourish Phosphorus™ will support and accelerate the expansion of aquatic plants without enhancing algae growth. For maximum receive advantages use with Flourish Nitrogen™ and Flourish Potassium™.
May not spur algae growth
Easy to dose