She's needing a lot more PK than you're giving her... and you also need to continue using the FloraGrow... that series is meant to be used together throughout the grow. In flower, the ratio you want to achieve is 1X of the Grow, 2X of the Micro and 3X of the Bloom.... but again, she needs more PK. I would recommend using General Hydroponics KoolBloom liquid ... 1-2 tsp per gallon... They also sell a dry formula of this which is used in the last 2 weeks before harvest.
Good luck!