BEGINNER: Use 2.5 mL (half a cap) for each 80 L (20 US 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.
Flourish Phosphorus™ Dosing Table
The following dosing table provides the "beginner" dose of Flourish Phosphorus™ for various water volumes. This table applies to bottles of 100 mL - 500 mL. Please note that the 2L and 4L bottles of Flourish Phosphorus™ have larger cap volumes than the smaller bottles.
| Water Volume | Dose in mL | Dose in caps | Dose in drops |
| 1 quart (1 L) | 0.025 mL | 1/160 Capful | 0.6 Drops |
| 1 gallon (4 L) | 0.1 mL | 1/40 Capful | 2.5 Drops |
| 5 gallons (20 L) | 0.6 mL | 1/8 Capful | 12.5 Drops |
| 10 gallons (40 L) | 1.25 mL | 1/4 Capful | 25 Drops |
| 20 gallons (80 L) | 2.5 mL | 1/2 Capful | 50 Drops |
| 40 gallons (160 L) | 5 mL | 1 Capful | 100 Drops |
| 50 gallons (200 L) | 6 mL | 1 1/4 Capful | 120 Drops |
0 Comments