the containers i have my plants in now are capped on the top and bottom, just a little hole for the plant to grow out of, so im finding very little air gets to and drys out the dirt which is basically the same as over watering but im not getting nute burn cuz of it, just one leaf that looks like cal/mag defic to me, and my plants are only a few inches tall right now so i wouldn't think nute burn just from rich organic soil would be that probably but i am a n00b to moonshine mix so maybe im wrong too