I use like 10ml fish hydrolysate, 1/4 cup of molasses and 1/4 cup of worm casings to a gallon of water.
You can absolutely see the plants green up, they'll go from a light green to almost a dark blue green a day after you feed it.
I've grown up doing landscaping for my parents business, and have been working with plants a long time. I really think you are over feeding and causing nutrient burn and lockout. Think about it kind of like flooding an engine. Too much gas is just as bad as too little. Ever flooded your lawnmower and no matter how hard you yank on it, it won't start?
KISS. Keep it simple, stupid.