m0useanswered grow question 3 years ago Your diary says the growing medium is Soil 22% then lists nothing else.
What is the medium comprised of? it may need some CalMg, if its Coir or Peat it will benefit from this addition.
BioBizz can work as low as 6.2PH so I don't think its a PH issue off the bat.
One word of advice for using BioBizz nutrients. let them sit out for 12 hours once mixed up to allow the PH to drift. then adjust it if needed.
Good Luck!