Phosphorus is one of the main three macro nutrients (nitrogen, phosphorous, potassium: NPK) required by plants and can often become the limiting factor to growth in a ourishing system. Flourish Phosphorus™ is a safe solution (4500 mg/L phosphate) of potassium phosphate that takes the guess work 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 the needs of your plants without the risk of overdosing nitrates. When used as directed Flourish Phosphorus™ will enhance and accelerate the growth of aquatic plants without enhancing algae growth. For maximum benefit use with Flourish Nitrogen™ and Flourish Potassium™..

Sizes:100 mL, 250 L, 500 mL, 2 L, 4 L, 20 L
 

DIRECTIONS: BEGINNER: Use 2.5 mL (half a cap) for each 80 L (20 gallons*) once or twice a week or as needed in response to signs of phosphorus deficiency (e.g. stunted growth, plant dark green). EXPERT: The beginner dose raises phosphorus by 0.05 mg/L (0.15 mg/L phosphate). The ideal phosphate level will vary, but generally ranges from 0.15–1.0 mg/L. Use MultiTest: Phosphate™ to monitor phosphate levels. To target a specific phosphate increase, dose according to the following formula: 0.8vp=m, where v= volume of tank in gallons*, p=desired phosphate increase and m=volume of product to use in mL. For example to raise 20 gallons* to 0.1 mg/L phosphate you would use: 0.8*20*0.1=1.6 mL.

Plant Dosing Chart. Click here.
Download the Plant Dosing Chart as a printable PDF here

 
Guaranteed Analysis
Available Phosphate (P2O5)
0.3%
Soluble Potassium (K2O)
0.2%

Derived from: Potassium Phosphate
 
Want to know more?
Visit the Flourish Phosphorus™ FAQ
 

Flourish Nitrogen™ is a concentrated (15,000 mg/L) blend of nitrogen sources. It provides nitrogen in both the nitrate form and the plant-preferred ammonium form. However, no free ammonia is released because the ammonium in Flourish Nitrogen™ is complexed and unavailable until utilized by the plants. more...


Flourish Potassium™ contains 40,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is an important element that is needed by all plants. In a thriving planted aquarium it can become the limiting factor to growth if it is depleted. Flourish Potassium™ is an integral component of Seachem's plant products and is recommended for use with the entire Flourish™ line. more...

 
 

Safety Information: Material Safety Data Sheet (MSDS)

 

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