Not necessarily- the transplant is probably just a coincidence.
My best guess is that you’re seeing the repercussions of improper feeding now, week or two after it needed it.
Says you didn’t start feeding til a week or two ago? Coco needs need essentially from the very beginning. It takes some time for signs of deficiencies to pop up, so I’m thinking it’s just showing obvious signs now from lack of nutrients from some time ago.
Also - I’m not entirely familiar with advanced feeding schedule, but I think .5 mL/L of the base A&B isn’t quite enough.