I think i did spray them while they were under the lights and didnt wipe it off . But it is an organic solution so didn't think it'll have such and effect . I used "lush potting soil" , i mixed it with perlite . I used boigrow organic insecticide pyrol . Then for nutes i use "calcium magnesium nitrate +" 122 33 137 respectively and "Nitrosol" npk 80 20 58 . I mix it about 1/4 strenght each with water and use it . Usually just used Nitrosol but it didnt have enough N . Ph is 6-7 .