Great information, thanks...Plant Abuse Chart and Photos by Nietzsche look in here first..rob
Soil could be too hot or you could be using too much nutrient.Watering them to much ?
What's the EC of your water? If none of that explains it, you're down to temperature and humidity. There's only so many things to go wrong bro. I'm not going to play this guessing game anymore so if you want to know, you'll have to list every detail... and maybe in a new thread too.Its in rockwool, and they are 12 days old, ( no nutes " yet" )