WooHoo!
Hi Carmen Ray!
I grow Hydro, and one of the Most valuable tool in my Head is recognizing Root/O2 problems most call Overwatering. It doesn't always mean 2 much or 2 often watering, it could also be brought on by temp, humidity, light intensity... etc.
I do notice this 2 be what is going on with your plants. I do not believe those leaves mean you need to add anything to correct it, and sometimes doing more can cause more problems.
The things I look for to check for this is Bloated leaves, leaf edges turning under, leaf edges changing color, yellowing veins, droopy leaves....
Overwatering (root O2 problems) can cause many things like calcium def, P def, K def, slow growth, etc...
Adding Cal/Mag, or other nutes will not fix this, you need to figure out why the plant is restricting O2 absorption.
Do you recognize the symptoms?