Hey buddy. After looking thru your grow.
Your feeding the soil also right?
As your lowest leafs are running to issues.
But, overall they look super. Lovely color. Nice growth
I'm not a fan of foliar sprays. They block the pours of what draws in co2. Hence slowing growth
You really should only be in need of them. If you have issues.
You'll find feeding from the bottom up. Will make for much faster growth.
Better co2 intake increases photosynthesis
But they do look darn good
Enjoy the rest of your grow