I had same issues with biobizz no matter what ph or calmag i used. Plagron fixed that instantly, do consider.. biobizz is alao freqking expensive after 8 different bottles.
@Butrub, since cultivation is legal in germany, there is more exchange. i will also test another organic fertilizer in the future because mixing 100 bottles during flowering gets on my nerves.
But what I have learned is that if you use BIOIZZ and add worm humus to the substrate, the plants look much healthier