Planthead yes i think i will check the actual strength-hotness of the FF. It has a hot reputation but would be nice to know how hot. I usually won't feed for approx two weeks after transplanting into fresh FF. I appreciate the idea.
I have been hesitant to flush because the deficiency was showing after i had not fed for a while. Then i fed a few days ago at 1500 and now i am not sure if they are getting better or not. I am going to flush tomorrow just to be safe since all you experiened suggest it. I will update this as to what happens:thumbsup: