Abusive OG - Photoperiod

The light when switched into flower was too much and you can see a perfect square of light burn in the center :( as well as that it exacerbated a calmag problem caused by me giving too much potassium *my opinion* so I flushed it twice this week with 5 gallons of yucca water each time, and it stopped the deficiency from spreading it appears. I was going to perform a week 3 defoliation, but because of the problems I decided to keep all foliage so she can keep up on photosynthesis and in case anything else goes awry, it can attack those mature leaves All in all she is plumping up and I think the stretch is done for this girl, she’s starting to get gum balls going lol