Micro

Micro is the bottle that goes in first, every time, in every phase. It carries the calcium and the full chelated micronutrient load — iron, manganese, zinc, copper, plus boron, cobalt and molybdenum — that the rest of the program is built on top of.

Liebig’s law of the minimum is the whole argument for it: growth is capped by whichever essential nutrient is scarcest, not by the total. Micro is there so the scarce one is never a trace element.

Guaranteed analysis — 5-0-1

• Total nitrogen 5.0% (0.5% ammoniacal, 4.0% nitrate, 0.5% urea)
• Soluble potash 1.0% · Calcium 4.0%
• Iron 0.1% chelated · Manganese 0.04% chelated · Zinc 0.03% chelated · Copper 0.005% chelated
• Boron 0.02% · Cobalt 0.0005% · Molybdenum 0.002% · Sodium 0.1%
• Derived from ammonium calcium nitrate double salt, potassium nitrate, urea, cobalt nitrate, iron EDTA, sodium borate, sodium molybdate, copper EDTA, manganese EDTA, zinc EDTA

How to run it

• pH-balance your water, then Micro first. Grow and Bloom after, supplements last, one at a time.
• Out of direct sunlight, above 48 °F (8.8 °C).

In the bottle: rusty red, water-thin, faint sea smell. Shelf life 3 years or more.