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.
What the moderator said. It almost looks like there may be some root damage, but with everything else, I would say PH, nute excess...and yes, humidity. Flush that medium with ph neutral water and inoculate with microbials and an organic full spectrum fert, half strength to start. There are other way, but thats what I would do...