Fast buds Girl Scout Cookies LED Small

A few things going on this week. So new water mix, heavy on the bloom mix as flowering will come around very soon (Or so I was hoping at the start of the week) Made up a couple liters of this which were used at the start of the week. Moved into a larger pot as well I think it was a 13lt. coco and perlite mix. The plant has taken off from the start of the week to the end and she's starting to flower. I have also started the low-stress training in hopes to encourage new growth and nodes. Still noted some issues with lower leaves, suspect that it was to do with the way I decided to mix my nutes which I now need to figure out before its too late. Any advice or ideas on what it is would be appreciated. (More Cal Mag ?)