it seems as if SOME strains are more vulnerable than others (I grow sativa-dominants, maybe that's part of the reason ??) ... my nurseryman verified my suspicions, when all my seedlings burnt up ... after 41 years of successful growing, I was completely stumped ... it finally got down to where it could ONLY be the soil, and that's when my nurseryman tipped me off (besides, it was the very first time I used the Fox Farm OF soil, so that pointed fingers) ... as soon as I went back to my old stuff, my seedlings took right off ... after they got a good start, I transplanted them into 100% Fox Farm Ocean Forest soil, and I expect no more problems ... :smokin: roadcam, formerly the image reaper