I think you're overloading her with nitrogen which weed does NOT need a whole lot of during flower and is indicated by the clawing of the leaves... Personally, I'd get rid of the Flora Gro completely and give her a good flush (which means running 30 gallons of ph'd water through that 10 gallon pot!). When you flush, add 1/2 strength bloom nutes to her in the last gallon (I have no idea what Hi-Brix MFP is so can't comment on it)... things should start looking up (LOL!) within 24 hours...
Good luck!