I have never checked run off-
I have never checked ec or ppm
I follow the instructions on the nutrients- no extra
Supplement with kelp/humic acid throughout and blackstrap in early flower
Pay attention to the plants and give them a good environment
I am lucky that my water source is under 40...
It is always a difficult thing to trash a grow- remember- this is farming and farmers lose crops for many reasons each season.
If in doubt- throw it out
If you were nearby- I would gladly share my crops with you to keep you safe- be well
You have to start backwards-
What are your goals?
How much time do you have to dedicate daily?
When I had a roomful of large plants during the summer- humidity was difficult to control.
I am flowering 6 plants in an 11’ x11’ room.
At lights on last night, i did my normal feeding- made 8 gallons of nutrients, and staked up a bunch of branches that are beginning to sag - I was in there around an hour and a half.
I can’t imagine 108 plants! You obviously have experience but how...