Hmm well i will raise call mag dose a bit on next feed , it seems to be a calcium deff to me ?
Ive had the best luck keeping my netpot submerged too. It looks like you might have some root issues along with ur
calmag deff.
Are u sterile or live? If your live and running microbe, I'd submerge the netpot and gently massage the roots to get the slime off it. Anywhere there are clumping together needs massaged. Water and air need to flow around the roots.
I'll say this one plant in my rdwc has been submerged causing the roots not to stretch. Alot suggest your roots stretching is good, so lower your water level. Imma suggest that if your hydro system is good enough, you won't have a large root mass.
My plant will yield over 8oz,and if you cut all the roots off, it's bairly a handful lol.. Not even lying, I'll have pics and a post soon about it... But then in my Dwc where it doesn't recirculate, the roots have gotten huge, yet my yeild is nothing compared to my rdwc.
Basically if your purposely leaving that air gap to grow root mass, unless your water temp is under 70, you will have root rot. That air gap in your bucket, without cool air, well the roots fry in my opinion.
My Dwc will have over a lb of roots and my rdwc will have around an ounce of roots. Dwc will yeild about half what my rdwc yielded. Sure most is genetics, but fishbones is what u want your roots to look like.. Not strings.