Hey buddy, take a look at my grow thread for this one,, I had lots of bumps in the road, including some nitrogen tox due to adding hydro nutes / salts to the fox farms ocean forrest,, the tips burned and I got the "claw", I also feel my growth was stunted just as you said, So it really makes me wonder what could have been,, I am still very happy,, shoot the buds are in jars and they smoke good
here is the thread,, its short, but it answers all your questions
https://www.rollitup.org/t/the-foxs-second-led-grow-under-cxa3070.878562/
Edit: I have got to say, I wish I would have used just straight tap water for the whole grow, problems started in FFOF when I started adding nutes, I know that sounds crazy, and my nutes were super light at 350ppm and it still pushed it into lock out, and like you I was not set up to flush,