On day 15 I noticed something that was not as it should be. The leaves were twisting. Curling leaves can indicate different things. Too much or to little water, to much heat or to much light.
I am sure the watering and the heat were not the problem.
On day 16 I have increased the distance from LED to weed. I have also installed a timer for 4 hours of darkness per day. Look at the picture of day 19, the new leaves are not curling anymore so I guess this was a wise decision….
I have made a GIF sequence of 20 days of weed growing under LED. Funny to see the cannabis plant is turning clockwise for one quarter.
I will have to move the webcam backward or the plant will not fit the frame anymore.