I started with MG organic, the plants grew kinda slow. I put them in foxfarm and wow, what a difference. MG organic is ok, it won't kill them, but foxfarm is much better, it contains bat guano and other ferts that feed the plant for 3months. So, in retrospect I should have started with foxfarm. I was convinced that I wouldn't buy foxfarm and just use mg organic in the beginning, it was cheaper and easier to find. I had to go to a hydro store to get foxfarm but it was worth the trip!