Hi, I have four seedlings and all of them have a very light green tip that curls ever so slightly upwards or downward or both on the same plant. It's been sunny and hot as Hell but in the afternoon VERY RAINY. I bring them out in the morning and water and after school (-7 hrs) I water them because soil is only a little damp then 2 hours leather it pours for a few hours and it's been like this for 2 days. Any help? No pics as I'm posting this at night and the kitchen lights won't do it justice.