Hey Im growing indoor plants with Nightshade and Northern light genetics. I am going to try a mix of 2 cups organic potting soil, 1 cup perlite, 1 cup vermiculite, and then an undecided amount of worm casings epsom salt and bone meal. Ill be ferting them once they hit flowering but i dont plan on really ferting in veg so what do you guys think about that combo? anything else i should add to it?