PMDD

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Poor Man's Dupla Drops[edit]

A Plant Fertilizer Recipe for the Control of Algae in Planted Aquaria:
by Conlin and Sears

  • 1 Tbsp (~9g) Chelated Trace Element Mix (7% Fe, 1.3% B, 2% Mn, 0.06% Mo, 0.4% Zn, 0.1% Cu, EDTA, DTPA)
  • 2 Tsp (~14g) K2SO4 (Potassium sulphate)
  • 1 Tsp (~6g) KNO3 (Potassium nitrate)
  • 2.5 Tbsp (~33g) MgSO4.7H2O (fully hydrated magnesium sulphate, aka epsom salts; omit if already present in trace element mix)
  • 300ml distilled/de-ionized or RO H2O water
  • 0.5ml 9Molar (HCl) Hydrogen chloride (optional). See Molar solution.

It is a common misnomer that PMDD stands for 'Poor Man's Dosing Drops' but is indeed named after the propitiatory 'Dupla drops' method

Reference[edit]


Links[edit]


PMDD supplies in the UK[edit]

PMDD supplies in Canada[edit]

PMDD Supplies in the USA[edit]

Dosage Calculator[edit]