Hello everyone! I'm hoping someone can help me out. One of my girls started to develop brown spots on some of her fan leaves - over the past week or so around 5 leaves have gotten the spots, which grow bigger until the leaf dies. Otherwise, she looks good for the most part. I have her growing in Fox Farm Ocean Forest, and haven't given her any nutrients yet. I checked the pH of the runoff with litmus paper and it looked to be somewhere in the range of 6.5-7.0. Does anyone have any idea what she may need?[