I have salvia seedlings started in my basement under lights. The plants look wonderful, however, I noticed last night that the plants are getting black spots on the edges of the leaves. The plants are 4 to 5 inches tall now. Most of the spots are on the lower leaves, but there are a few spots at the top too. It this too much water, too little, too much fertilizer, too little, etc? I also have over 300 impatiens growing, and they seem to be fine. All my plants look very healthy except for these new black spots. I went down to get some pictures of the spots, but my batteries in my camera needed charging. I will try to post some pictures later tonight.