Awesome thanks for the responses, and my soil was actually nute-less, just soil Peat moss and vermiculite. Oddly it was $1.00 a bag.
and I shall try 2 mL/ gallon here on. Seeing as there is roughly 30 mL per ounce (29.975 mL) and 3 ounces feeds 100 sq ft of soil, I figure I have close to 2 sq ft...