I know this is very contriversal but can i use miricle grow potting soil(organic) for mr first grow? Also is it ok if i just use a 20-20-20 or a 10-10-10 nutrient plan for the whole grow?
Not the best choices but the soil would be better then the nutes. the one with an NPK of 20-20-20 is really strong and the NPK of the 10-10-10 is closer to being what your plants would need. Although with pot plants in veg you want your n to be twice that of the P&K and in flowering you want less N and more P&K. NPK N 10- P 10- K 10. NPK represent the nutrient numbers and how much of each nutrient is in the nute line up.