I recently ran into the problems in the video.The new development of the upper leafs are good.However,the under loooks real droppy and dying.Growing in coco+perlite (70/30) feed irrigation everyday PH:5.8-6 , EC:1.8, Run-off 13-15%.
Solved
Leaves. Edges burnt
Leaves. Dropping off
Leaves. Color - Mottling