Smooth Grow Near Fuji Mountain at the end of the Spring

Well, I overfed them or they want calmag very much. Next day after watering with nutes purple spots appeared then turned into dry brown spots. But they are getting fatter. Also I started to give then 2lt of water each instead of 1,5. Also one day it was very very hot, I forgit to turn on the aircon so temp grew up to 32 for several hours. When normally it's 22-24. Next time I should be more cosious with nutes.