Hi. Theres good views here. Theres a ditate that says, if you care too much it will dies. But cannabis like water plenty and the right temperature. I live tropical area so, i just choose plants accostume to sun heat.
The second view i would say, calcium deficiency is a b^*^ .
I add 1% milk. Sometimes 1% magnesium milk phillips if nedded.
Need make compost with eggs shells, helps a lot. Sea shells is a big enviroment damage. Cant get toomuch from beaches... but need a calcium with good absorbtion.
So i hope the plants recover well , vegetation phase is althe only good phase for mistakes.
Try to water with oxygenated air bubbles.
Nitrogen too, it will make strong plants.
When learn about phisiologies, the proteins uses monomers singles blocks. To make canabinoids it need sulphurs proteins, like cisteíns.
So try to add a Sulphur suplement too, some metals acts like enzymes.
I will try to oxydate some iron nails for sulphurs ferrous oxytes.
Sorry bad english.