Great White Shark Auto-Canada legal grow

This week I noticed MAYBE i might be overfeeding these two girls. The bottom fan leaves are curling. They are getting a pretty thick stalks and alot more strength. I think they look pretty good so far! No nutes cus I have organic soil but we shall see how this plays into action with autos. I had a power outage yesterday which was for about 1.5 hours so hopefully didn't effect them too badly. Jan25/20 I think they have nitro toxicity, I am using an organic soil that is setup to feed 2 months of nutes, not having planned these autos- they are already showing pistils and growing rapidly by the day, leaves are still curling temp is 22 during the day 17/18 during lights off. I PH tested soil and water before, water is 6.2, soil tested 6.5 runoff is 6.6 I havent given them ANY nutes besides whats in my soil- Am I going to lose these girls or just stump the progress? JAN 26/20 OK so thank you everyone for the suggestions, I have moved my light down a few inches, I did a flush this morning with nutes, added a tiny bit of flora micro in for nitrogen just in case- and hope they will recover! My soil has 0.12% nitrogen and my bottled nutes have 5% nitrogen in flora micro and 0 in flora bloom. I;m hoping these girls are just lacking in nutes and this will bulk those bitches back up!