So the browning seemed to have slowed down but i was wrong.
My HPS camp in a couple days ago so a put the three big ones under and one of the younglings. (picture below)
I water all my plants 1-2 times a day with about half of my spray container.
18-18-21 solution every 3 days.
I use a PH/Moister/Light meter that cost only 10$ (picture below) I would say reading come out plus of minus 1.0 off.
My lower leaves were dying and if I picked them off then the next set of leaves would die to the point as shown in the two bottom picutres over a 3 days span.
For one of my plants, last night the leaves that had a bit of dark color in the middle of the leave for a while all curled up real bad. (last picture)
Please I need help to save them. I've got some ph up ph down on the way but with this ph meter I could just make things worse.