Im in a totally "uncool" area of the country, any don't have access to "fancy schmancy" nutes and potting soil either, you just haveta get away from that MiracleDeath stuff, and go with what you have available, like worm castings, and any guanos, and all the things we add into our plain-jane soil to make it a rich, but not ultra hot mix... Like PERLITE, dolomite lime, greensand, rock phosphate, and other things that nearly all nurseries DO carry that are totally awesome for using in the cultivation of mj... And add in special p-rich guano-teas and things when you want to feed during flowering... But, if u flush, and transplant into some weaker medium, you will be just fine... Ya gotta ease them into different mediums, and not just throw them into the frying pan, so to speak... But, on the bright side for you, they arent burnt that bad... Ive seen alot worse, and usually when I have, theyve used some sort of MiracleDeath crap... Just my take... Fuck MiracleGro... Their soil does not have enough perlite in it anyways... Mix your own bro...