As of today ICMag has his own Discord server. In this Discord server you can chat, talk with eachother, listen to music, share stories and pictures...and much more. Join now and let's grow together!
Join ICMag Discord here!
More details in this thread here: here.
I had something very similar happen to mine. We had a heat issue where the plants were at 90+ degrees for about a day when it was only 2 weeks old. other than that I'd agree with 420 about the pH. good luck, let us know if you find the culprit.