Nutes shouldn't be a problem and the fan that's blowing on them is on the lowest setting and oscillating so wind burn I don't think is possible!looks either wind burnt, or kinda like when lower foliage doesnt get alot of light kinda tends to die off. did you cover all the nutrients you need for its whole life cycle? i mixed a 4 no till super also but the only issues ive had is acclimation i think my plants didnt like going out so early and now are stressing