There is your issue...very early to transplant causd shock, change of medium more shock and a very hot soil even more shock and some nute burn. Did you buffer the soil with perlite at all? Well, what to do now. I never state absolutes as to fixing other's grows because all are different. But, if it were my grow I woul not give any additional nutes for at least 6-7 weeks. You will have transplanted again by then and added more nutes. Cut down on the watering and let the roots search for moisture this will make them grow stronger and longer. I would not do any other changing of conditions right now with the exception of perhaps adding some rh to the grow area. Let them do their thing, nothing has harmed or killed more cannabis plants than their parent loving them to death.
I got the temp and humidity on point. I guess I'm a little too excited as a first timer and got carried away.
I've been light with the plant in the cup... i'm learning from my mistakes. I'm also trying to keep track of what I do in journals. Makes it a lot more easy to remember the last watering date etc.
Yes they do have drainage holes
