well i got short on perlite so i went to walmart and picked up a small bag perlite as i was lazy and didnt want to drive to homedepot as it further. proceeded to take clones as i have done hundreds of times. planted them in their new mix with perlite. 2 weeks later dead clones showing the claw then drying up and dying. started another batch while scratching my head as my method of cloning is about foolproof or so i thought. 2 weeks later dead clones. went and checked everything temps,ph ect. nothing wrong. went to do 3rd run of clones and while pouring out miracle grow shit perlite noticed it has nutes. took another batch clones no miracle grow shit perlite. . SUCCESS like healthy happy sour bubble clones. moral of story read all labels dont get cocky and assume anything. hopefully this might help a few