How much of each nutrient are you feeding the plant at this point? I think that you are underfeeding them and since water is basically inert (unlike soil) you need to make sure you are giving them enough food. It seemed to me that your ppms were very low for a plant this size. How often are you changing out the res? What are your temps? What is your pH?
Thanks for getting back.
Sunday i re planted her from a small set up to the one i have now. my pH is at 6.2 and the nuts are not at max amounts. I add a little less then recommend. how can i help her. Thanks