I have started a bunch of seedlings and some are doing really well others are not, under similar conditions. I used 6-8 inch wide pots, ~6 inches tall, potting soil, and left the pots in front of a sunny bay window. The first picture below is of an eggplant seedling. It seems to be wilting, but I have been giving it plenty of water. In fact, I have been watering it the same as the tomato seedling in the next picture (the background of which has the other sad eggplant seedling). The one major difference in conditions was closesness to the window. I swapped them today. What is going on?