Hi All!!!
Everyone has their ideas of how to grow.
When you ask for help here, you will get different opinions on the problem.
I have found that keeping my PH at around 6.5.
Using a quality soil, "Fox Farm Ocean Forest"
with a complete fertiliser, on the correct schedule for the age of the plant.
Lots of fresh air "Not recycled or blown around stagnant air"
will help you have a healthy plant.
I also supplement some Cal-Mag.
I also keep the temp at a max of 80f.

Good air circulation helps but as Stinky said, just blowing around hot air will just dry out your plants.

I listen to Stinkyattic and it has helped me, I still got problems but I know where the help is.

I still have discolored leaves and this sticky stuff all over my plants.

GO FIGURE.

PS, Thanks Stinky