Hi Tattochase.. This is my first grow for about 15 years, so I really feel new to it.. I am also growing in a totally different way to how I used to. I used to grow hydro and from cuttings. I am now growing from seed in soil and feeding with dry amendments to keep it super simple.
I am really not clued up on coco to be able to give you any helpful advice I am afraid. Sorry about that.
There is sooo much information available to a new grower now, it can be confusing and kinda hard work. My advice would be to keep it simple until you feel confident enough to experiment. For example I was going to LST these plants, and did attempt it, but felt that I should let them grow without interference and focus on feeding and conditions, and so aborted the LST. I have also kept daily notes which have really helped as a reference.
Check this:
https://www.autoflower.org/threads/...-blue-cheese-yellowing-poss-zinc-or-ph.86745/ as it has all details of my grow. Even I have had concerns and issues in this grow…
In my humble opinion your plants look like they are doing ok..