[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

**To**:**<aquatic-plants at actwin_com>****Subject**:**Re: "Liquid potassium calculations"****From**:**"Joe Kopanski" <kopanski at earthlink_net>**- Date: Sat, 11 May 2002 10:32:47 -0400
- Importance: Normal

Matt: You need to add about 1 tablespoon of 25% Potassium solution to 60 Gallons of water to get 20 ppm. K1 = Concentration of Potassium in fertilizer = 25%/100% = 0.25 Dose = Volume of fertilizer in milliliter (mL) V = Volume of aquarium in Liters (L) K2 = Concentration of Potassium in aquarium (in ppm) 1 Gallon = 3.79 Liters 1 mL/L = 1000 ppm 1 tablespoon = 14.7 mL * = multiplication sign 1 mL out of 1 Liter is 1 part in 1000, or 1000 parts per million (ppm) 1 mL of 25% solution in 1 Liter of water is 250 ppm Mathematically: (K1 * Dose *1000)/V = K2 Solving for Dose yields: Dose = (K2 * V)/(K1*1000) If, K1 = 0.25 K2 = 20 ppm V = 60 gallons = about 227 L Dose = (20*227)/(.25 * 1000) = 18 mL The water drop size from most eye-droppers is 0.05 mL, that is 20 drops will give you 1 mL of solution. A table spoon is about 15 mL, a teaspoon about 5 mL. Joe K In Takoma Park, Maryland Blooming in the yard today: foxglove, moth mulleins, iris

- Prev by Date:
**Re: Where to buy [plants]?** - Next by Date:
**flat sucker.** - Previous by thread:
**Re: "Liquid potassium calculations"** - Next by thread:
**Blessing Musa** - Index(es):