Ok so looking at the big picture if it was my grow I would try to achieve 78-80f day and 68-70f night. Remember that's to strive for but doesn't mean your plants won't do well outside of that.
I would back the light off to 24" at 80% and 100% you should switch to 18/6. The Calvin cycle is Important under higher lighting like LED and although there will be less hours of light it will be more efficient and take advantage of the different processes performed during lights on and lights out.
Lower your input ppm to 600-800 total unless adding anything more than the trio and cal mag.
100-150ppm of
calmag and the rest nutrients. Ph between 5.6-6.0 until flip.
You will need to do some defoliation on this as they are dense and that can lead to high humidity microclimates and eventually infection.
I would remove the oldest damaged fan leaves, large fans blocking new growth and large fans not getting light.
Always start with the biggest and oldest as they are less efficient than new growing tips and leaves. They key is imo to remove as much of the oldest fans it leave newer without letting light travel through the plant to the ground. You want the plant to capture as much as possible as it's the overall photosynthesis we are looking for.
You can also remove and small offshoots and fans low on the plant. Typically the bottom 1/3 bit looks like your doing some training so that may be to much. Just enough to allow a good amount of airflow through the plant.
Humidity 50-55% I'd say especially with them being dense as the humidity inside the canopy will be high. If you have a hygrometer just stick it into the densest part of the plants for like 5 min and check it. That will give you a good idea of how much you need to open up the bottom of the plants and make some fan adjustments if needed.
Last one I would do is increase the feed frequency. I say this because your ppm is rising in the media and its likely in large part due to the amount of runoff and dryback.
Hiw might are the pots and does the coco have any perlite in it?
