Your yield and quality is directly affected by how much time and effort you put in.
Read as much as you can, then re read it and understand it.
Less food is more. NFT and I alway try and stay on the dropping side of the ec. I.e if the water drops and ec rises too high. I like ec to stay at 1.4 then drop with or faster than the water level.
Don't remove leaves, let the plant decide what it doesn't need. They are the engines that supply your baby. Under screen stuff is ok but not needed.
There is no 1 important thing. ph, ec, temp (canopy and room), humidity, air flow and air renewal, light ( spread, distance, coverage) feed rate and make up, etc should be treated as 1 check to make sure they're all exactly where they need to be.
Change res every week. You're using less food than they say so it's no big deal. 2 changes uses less food than the companies schedule for 1 change.
Read until you understand how to read the plant without checking anything else. They will tell you exactly what they want and when they aren't happy.
Don't over complicate, they've been growing for thousands of years without help, as my mate says "it's not rocket surgery"
Plus make up your own mind. Opinions are like a clit every cunts got one.
) of LST can go a long way. <Bushes 
