In my DWC, I run per gal-
1 teaspoon Silica every other week
Jacks A- 3.6 g & 1.2 g Epsom salt together - add
Jacks b- 2.4g - add
then I add
.8g Fulvic every other week, ( I usually do the Acid and Sand at the same time so I don't mix up weeks, one just the basic formula, then 1 w/ extras.)...