dyring

I have 3 plants under CFL. All was well until I switched from 18-6 to 11-13, 2 weeks ago and started on a flowering nutrient. Now they look sick and frail. (Could NPK be the issue) Scenario: Miracle Gro potting soil with DuGro all purpose fertilizer 15-30-15. Too much? 7 weeks old. Topped and...