2ml of fish mix with every feed will lockout your plants. Too strong, they will burn.
I grew with 10% additive of worm castings and i fed 0 nutes during all grow.
I had strange results with fish mix, i dropped it from ratio, just bumped biogrow to 4-5 ml/l.
Rest is ok, its almost impossible to overfeed with biobizz if you dont use fish mix. I found theirs calmag unpredictable too.
growdiaries.com/diaries/164021-grow-journal-by-asnoriu
Thats one of 3 girls from 0 feed round.
I was starting to feed only on week 4-5 with all mix soil. Was feeding every second watering, always slowly , for better irrigation and with small run off ( to prevent salt build ups ).