Nutrient lockout?

Please help me.....
Thought it was nutrient lockout so I gave it nothing but water, it’s been 3 waterings in 13 days and still no change and actually looks kind of worse.
1000 w Parfact works LED
16” above canopy (just raised to 20”)
Fox farm grow big 2 tsp every other water and Fox farm big bloom 3 tbsp every other water
Waterings/Feedings ph 6.5
Black magic potting soil mixed with pro peat blend

yeah you have some deficiency issues probably from the medium your using...its hard to say exactly what and why without knowing everything but definite cal mag issues...

You’re overfed. So yes, lockout.