What is this?

[Hanzo-hattori]

thanks Rev.GG!

Hanzo- looks like Ca defc. to me,... that spotting along the veins and color loss is pretty tell-tale,... given your low level inputs of nute's, this is likely a lack-of... Don't flush! that's for serious pH and overfeeding problems mainly, neither of which are happening here,... Is this the same plant as the other thread? Purple petioles are not a reliable indicator of anything, so many express color normally this way,.. other things can promote this too besides nutrient issues,..... only as a co-symptom is it sorta useful...
...needs pic of the wilting leaves to figure that out, they won't do that unless maybe the dehumi' unit is blasting they directly,...

I fixed the wilting issue but a few of the girls definitely developed a cal-mag deficiency, but I’m on top of it so we should be ok, as for the flush I flush pots at around day 30 to clear salt build up