GH Flora is run at 5.8. Exception is coco at 6.1
Test your runoff ppm. If much higher than feed ppm, you have a buildup. Leaves will get extreme nute burn. Growth will otherwise be dark green and stunted.
You either aim for a sterile reservoir or one inoculated with beneficial bacteria.
The later being easier to achieve.
A few ml of orca brewed with an airstone for 3 days with a tablespoon of brown sugar and 3 gallons of h2o and you now have 3 gal orca.
The underside of the plywood roof sheathing is cold in the winter. Warm moist air from your grow hits that and condenses. Mold grows. Seen it happen, seen the results.
Venting during lights off can be a n energy efficient method of dealing with humidity provided your ambient RH isn't too high and temperatures are acceptable. Mighty big if for some.
No warrant, they can bounce. No conversation beyond everything's fine here officer.
If warrant, they'll kick in the door and you have the right to remain silent, hopefully you have the brains to do so.
Forbid 4f is effective at prevention or elimination of early stage infections in veg.
In flower I know of nothing that's effective on hemp russet mites.
Have you confirmed this pest with a microscope?
I think super critical bottoms out around 91f, times are very long for co2 scfe due to the weak nature of scfe co2 as a solvent.
This is why co2 oil is packed in syringes and is dark brown.