123Growanswered grow question 3 years ago I have had this happen to my MAC1 by expert seeds do this. I used a product called Green-Tone by Espoma Organics. I has magnesium, sulpher, and a very light dose of nitrogen. 2 tsps and MAC1 came back to real green in 5 days with explosive growth. I kept the followed the feeding schedule with my regular grow nutrients for the week listed. The leaves are the size of a 7 foot man’s hands…..