An Grandma Enggys H2

Advanced Nutrients Grandma Enggys H2

Humic Acid 80% (leonardite) 125.76 grams
1.2 grams sodium benzoate (as a preservative)
top up with RO water to 4L mark

2.5 - 5.0 ml per liter in Hydroponics
5.0 ml per liter in soil

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