Strawberry Gorilla Auto

Had issues with leaves yellowing this week that seem to have started when I introduced Open Sesame last week. I have one plant that the leaves have turned dark green and started to become brittle. I believe I caused this by letting the plants grow to close to the light. I have raised the lights in hopes this helps the issue. I watered with once this week with 1 gallon of water. I did experiment with the plant that had the most yellowing by doing a flush with Sledgehammer. Plants haven't grown much in height but buds are continuing to develop.