I noticed you started with a pH of 7 in your grow medium and just now got it to 6.3
I think this was your main problem. Like I stated it's not what nutrients your giving them, it's that she can't absorb them. You can tell by leaching of color in the leaves. (Can also happen from excess water.)
If your ph starts to rise again I suggest you add some dolomite limestone to your soil. It will help keep your oh I'm check and in turn prevent nutrient lock out.
I hope this helps.
@Ctrellis90
Thank you I didn't know those products, I will keep them in mind for the future but now I will try to fix as follows... 1ml alg a mic, 1ml activera and 0.5 bio heaven, and then water until the right pigmentation resumes
@UnkleSkunk
A drop in nitrogen sounds strange because administering the Fish Mix Biobizz - NPK 5-1-4 , so it could be an overfeeding rather than a lack, I remind you that strawberry pie was born delicate with the coty attached to the stem...
guardando il diario vedo che azoto non ne stai dando...
l'unico che prende è quello del cal mag...
quindi inizierei a usare un biogrow ,la pianta in questa fase ha bisogno di parecchio azoto
aumenterei un po' il cal mag su alcune foglie si vedono dei segni premonitori
x l'acqua l'importante non è quanta ne dai ma se lasci asciugare il terreno
ho visto che hai messo dell'humus di lombrico è ottimo anche quello ma sembra che sia esaurito le foglie sono verde un po' chiaro