Poor Man’s Dosing Drops- 500ML – $7

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1 Tablespoon  Potassium Nitrate
2 Tablespoons Potassium Sulphate
1 Tablespoon Magnesium Sulphate (Epsom salts)
1 Tablespoon Chelated Trace Element Mix (7% Fe, 1.3% B, 2% Mn, 0.06% Mo, 0.4% Zn, 0.1% Cu, EDTA, DTPA)
500 ml  distilled H2O

*Powder only, you supply the water and container

http://www.theplantedtank.co.uk/PMDD.htm

Includes 3ml dosing pipette