Yes it is nute burn. You see, every time you water this potting mix, it releases nutes....well too much for cannabis.....Find just a basic potting mix without all the nutes.
WashougalWonder Reviewed by WashougalWonder on . Plants - Nute burn and No added nutes (form filled) What is your experience level? first timer Your Equipment: 1) Type and wattage of lights. CFL(six) 4 bright white, 4 soft white. 23w equivalent to 100w Distance from tops? Approx 3inchds .3) Reflector type?None .4) Is there a consistent fresh air supply? No air circulation in the go room to out of the grow room or vise-vera. .5) Do you have an exhaust fan and a circulation fan?Fan circulating 6) What are the bulb wattages, kelvin ratings, and schedule? 100w (6 cfls) =600w? Rating: 5