Def cal overfert nitro

Hello, I have the same problem, but in a more advanced phase. I am following the advice you receive with interest, I hope you solve the problem in time.

Ciao! Guarda io sono un fiero utilizzatore del biologico, e quando noto una carenza di calcio aggiungo al terriccio guscio di uova in polvere fine (1 uovo per vaso circa). Tenendo il pH corretto, senza aggiungere azoto, risolvi il problema in qualche giorno, e in più è a lento rilascio quindi risolve il problema per più tempo :)

If your cal mag has 5% N, I’d suggest finding a new company for your cal mag. Unless the Calcium and Mag is 10+% and 4-5+% respectively.. Botanicare is an exceptional brand of cal mag. GH is decent.

You went to the roots of problem. Now if you understood that toxicity is blocking absorbtion or changing ph, you would just water in right regime with 6.3-6.4 phed water for 3 cycles, everything should sort out itself. Havong wet dry cycle is very important, lift pots to determine, only top soil rubbing won't show ... In 9-12 days,after you water 3 times with plain , they will be ready for few flower boost, were PK part is bigger . Maybe you have enough nitrogen till the end even inside of pot already ... Soil has everything what they need, plants maybe just couldn't utilize it because of ph swing or toxicity aka lockout. Now with calmag, if your plants went into lockdown, changed colour, stopped drinking - i would recomend to add to first of those 3 plains like 0.5 ml/L calmag. Your plants look ok, if it won't progress - you should have nice harvest.