Hey, I use bio bizz soli but I use bio bizz all mix. Now I am on day 32 with auto think different and auto euphoria and still I didn't feed them anything apart from Rizotonic and cal mag .
Newer used light mix , but bio bizz soil is known for lack of cal mag in it.
So cal mag supplement is a must with that range, also if you use some dolomite it will help you wit keeping ph of soil and some of calcium supply in check.
From now on just give it supertrive to bring it back to live and bak off with nutrients and you should be golden
Good luck mate