Sooo I have four plants in coco, three are growing really well. Had a few ph problems in the past and some calmag issues but all rectified and no real damage done to 3/4 plants. This one plant has cost me weeks of research and time and I just can’t figure it out. There’s no issue with over or under watering but this one plant is dropping and stunned, some time’s i go into the grow room and the leaves are perked and I’m like FINALLY! Next thing you know there sagging again and no growth there’s some deficiencies but I think there old problems and obviously them leaves haven’t and won’t recover. Has anyone had this issue or know what may be causing it and how to fix it? Or what would you do if it was your plant ?