First time using an organic soil - and I'm definitely enjoying the simplicity of it. I'm just wondering how you re-amend your soils. As in, how much amendments do you put back into it? For instance let's say you initially used 4 cups of bone, 4 cups of blood, and 4 cups of kelp (not my mix, just an example.) When you reuse your soil, do you add 100% of the initial amounts? 75%? My mix is pretty simple - Promix HP bale, 2 bags FFOF, 1 cuft coir, 16qt EWC. And to this I added 2 bags of NSPB: FLF (Natural Selection Plant Botany: Full Life Formula) which is a dry mix in the correct ratios of the following amendments: alfalfa meal azomite beneficial bacterias blood meal bone meal diatomaceous earth dolomite lime dry molasses worm castings greensand guanos (N, P, seabird) kelp meal leonardite rice flour yucca The issue I'm having is - since I was using FFOF in my initial mix, I was able to make the NSPB go a lot further as FFOF contains nutrients. I'm trying to determine if I re-amend the soil as suggested on the packaging as if the soil has no nutrient content (1 bag per 10-12 gallons of medium) or if I should look at it as the used soil has roughly the same nutrient content as it initially did (as I used FFOF in the mix) and amend even more soil with the same bag of NSPB?