Next I would go to around 330 and see what happens just remember your Par level is going to auto increase as your plant grows taller.
You should be watering with
Add Cal/mag to 0.2 Ec or 80 ppm then add Fish shit 6 ml per gallon… (Don’t forgt to shake the fishshit very good )
At some point we need to talk about Top dressing…
You need to refresh my memory on some dates
What day did you move them to 5 gallon pots? What was the pot size before? Also is this your final pot?
When you water your not leaching much I hope also… We don’t want the food draining out the pot